diff --git a/ci/builders/linux_web_engine.json b/ci/builders/linux_web_engine.json
index fe61c9856fd22..928e919da2d1e 100644
--- a/ci/builders/linux_web_engine.json
+++ b/ci/builders/linux_web_engine.json
@@ -1,1552 +1,1542 @@
 {
-    "builds": [
+  "_comment": "THIS IS A GENERATED FILE. Do not edit this file directly.",
+  "_comment2": "See `generated_builder_json.dart` for the generator code",
+  "builds": [
+    {
+      "name": "web_tests/artifacts",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux",
+        "cores=32"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false,
+        "download_emsdk": true
+      },
+      "gn": [
+        "--web",
+        "--runtime-mode=release",
+        "--no-goma"
+      ],
+      "ninja": {
+        "config": "wasm_release",
+        "targets": [
+          "flutter/web_sdk:flutter_web_sdk_archive"
+        ]
+      },
+      "archives": [
         {
-            "name": "web_tests/artifacts",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "gclient_variables": {
-                "download_android_deps": false,
-                "download_emsdk": true
-            },
-            "gn": [
-                "--web",
-                "--runtime-mode=release",
-                "--no-goma"
-            ],
-            "ninja": {
-                "config": "wasm_release",
-                "targets": [
-                    "flutter/web_sdk:flutter_web_sdk_archive"
-                ]
-            },
-            "archives": [
-                {
-                    "name": "wasm_release",
-                    "base_path": "out/wasm_release/zip_archives/",
-                    "type": "gcs",
-                    "include_paths": [
-                        "out/wasm_release/zip_archives/flutter-web-sdk.zip"
-                    ],
-                    "realm": "production"
-                }
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "check licenses",
-                        "parameters": [
-                            "check-licenses"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    },
-                    {
-                        "name": "web engine analysis",
-                        "parameters": [
-                            "analyze"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    },
-                    {
-                        "name": "copy artifacts for web tests",
-                        "parameters": [
-                            "test",
-                            "--copy-artifacts"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "name": "wasm_release",
+          "base_path": "out/wasm_release/zip_archives/",
+          "type": "gcs",
+          "include_paths": [
+            "out/wasm_release/zip_archives/flutter-web-sdk.zip"
+          ],
+          "realm": "production"
+        }
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "check licenses",
+            "parameters": [
+              "check-licenses"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          },
+          {
+            "name": "web engine analysis",
+            "parameters": [
+              "analyze"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          },
+          {
+            "name": "copy artifacts for web tests",
+            "parameters": [
+              "test",
+              "--copy-artifacts"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2js-html-engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2js-html-engine",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2js-html-engine"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2js-html-html",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2js-html-html",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2js-html-html"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2js-html-ui",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2js-html-ui",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2js-html-ui"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2js-canvaskit-canvaskit",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2js-canvaskit-canvaskit",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2js-canvaskit-canvaskit"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2js-canvaskit-ui",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2js-canvaskit-ui",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2js-canvaskit-ui"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2js-skwasm-skwasm_stub",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2js-skwasm-skwasm_stub",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2js-skwasm-skwasm_stub"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2wasm-html-engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2wasm-html-engine",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2wasm-html-engine"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2wasm-html-html",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2wasm-html-html",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2wasm-html-html"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2wasm-html-ui",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2wasm-html-ui",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2wasm-html-ui"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2wasm-canvaskit-canvaskit",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2wasm-canvaskit-canvaskit",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2wasm-canvaskit-canvaskit"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2wasm-canvaskit-ui",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2wasm-canvaskit-ui",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2wasm-canvaskit-ui"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "name": "web_tests/test_bundles/dart2wasm-skwasm-ui",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "generators": {
+        "tasks": [
+          {
+            "name": "compile bundle dart2wasm-skwasm-ui",
+            "parameters": [
+              "test",
+              "--compile",
+              "--bundle=dart2wasm-skwasm-ui"
+            ],
+            "scripts": [
+              "flutter/lib/web_ui/dev/felt"
+            ]
+          }
+        ]
+      }
+    }
+  ],
+  "tests": [
+    {
+      "name": "Linux run chrome-dart2js-html-engine suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2js-html-engine"
+      ],
+      "test_dependencies": [
         {
-            "name": "web_tests/test_bundles/dart2js-html-engine",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
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-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "web_tests/test_bundles/dart2js-html-html",
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-                "os=Linux",
-                "cores=32"
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-                        "name": "compile bundle dart2js-html-html",
-                        "parameters": [
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-                            "--bundle=dart2js-html-html"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
         {
-            "name": "web_tests/test_bundles/dart2js-html-ui",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
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-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "name": "run suite chrome-dart2js-html-engine",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-dart2js-html-engine"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2js-html-html suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2js-html-html"
+      ],
+      "test_dependencies": [
         {
-            "name": "web_tests/test_bundles/dart2js-canvaskit-canvaskit",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
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-                        "name": "compile bundle dart2js-canvaskit-canvaskit",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2js-canvaskit-canvaskit"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "web_tests/test_bundles/dart2js-canvaskit-ui",
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-                "os=Linux",
-                "cores=32"
-            ],
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-                "tasks": [
-                    {
-                        "name": "compile bundle dart2js-canvaskit-ui",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2js-canvaskit-ui"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
         {
-            "name": "web_tests/test_bundles/dart2js-skwasm-skwasm_stub",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2js-skwasm-skwasm_stub",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2js-skwasm-skwasm_stub"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "name": "run suite chrome-dart2js-html-html",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-dart2js-html-html"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2js-html-ui suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2js-html-ui"
+      ],
+      "test_dependencies": [
         {
-            "name": "web_tests/test_bundles/dart2wasm-html-engine",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2wasm-html-engine",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2wasm-html-engine"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "web_tests/test_bundles/dart2wasm-html-html",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2wasm-html-html",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2wasm-html-html"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
         {
-            "name": "web_tests/test_bundles/dart2wasm-html-ui",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2wasm-html-ui",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2wasm-html-ui"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "name": "run suite chrome-dart2js-html-ui",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-dart2js-html-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2js-canvaskit-canvaskit suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2js-canvaskit-canvaskit"
+      ],
+      "test_dependencies": [
         {
-            "name": "web_tests/test_bundles/dart2wasm-canvaskit-canvaskit",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2wasm-canvaskit-canvaskit",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2wasm-canvaskit-canvaskit"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "web_tests/test_bundles/dart2wasm-canvaskit-ui",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2wasm-canvaskit-ui",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2wasm-canvaskit-ui"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        },
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
         {
-            "name": "web_tests/test_bundles/dart2wasm-skwasm-ui",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux",
-                "cores=32"
-            ],
-            "generators": {
-                "tasks": [
-                    {
-                        "name": "compile bundle dart2wasm-skwasm-ui",
-                        "parameters": [
-                            "test",
-                            "--compile",
-                            "--bundle=dart2wasm-skwasm-ui"
-                        ],
-                        "scripts": [
-                            "flutter/lib/web_ui/dev/felt"
-                        ]
-                    }
-                ]
-            }
-        }
-    ],
-    "tests": [
-        {
-            "name": "Linux run chrome-dart2js-html-engine suite",
-            "recipe": "engine_v2/tester_engine",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Linux"
-            ],
-            "gclient_variables": {
-                "download_android_deps": false
-            },
-            "dependencies": [
-                "web_tests/artifacts",
-                "web_tests/test_bundles/dart2js-html-engine"
-            ],
-            "test_dependencies": [
-                {
-                    "dependency": "goldctl",
-                    "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
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-                }
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-        },
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-                }
-            ]
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-                    "script": "flutter/lib/web_ui/dev/felt"
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+        "os=Linux"
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+      },
+      "dependencies": [
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+        "web_tests/test_bundles/dart2js-html-ui"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Linux run chrome-dart2wasm-html-ui suite",
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-                    "dependency": "chrome_and_driver",
-                    "version": "version:111.0a"
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-            ],
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-                    "name": "run suite chrome-dart2wasm-html-ui",
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-                        "--run",
-                        "--suite=chrome-dart2wasm-html-ui"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "firefox",
+          "version": "version:106.0"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite firefox-dart2js-html-ui",
+          "parameters": [
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+            "--suite=firefox-dart2js-html-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
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+      "name": "Linux run firefox-dart2js-canvaskit-canvaskit suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
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+        "web_tests/test_bundles/dart2js-canvaskit-canvaskit"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Linux run chrome-dart2wasm-canvaskit-canvaskit suite",
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-                    "dependency": "chrome_and_driver",
-                    "version": "version:111.0a"
-                }
-            ],
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-                    "name": "run suite chrome-dart2wasm-canvaskit-canvaskit",
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-                        "--suite=chrome-dart2wasm-canvaskit-canvaskit"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "firefox",
+          "version": "version:106.0"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite firefox-dart2js-canvaskit-canvaskit",
+          "parameters": [
+            "test",
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+            "--suite=firefox-dart2js-canvaskit-canvaskit"
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+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run firefox-dart2js-canvaskit-ui suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
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+        "web_tests/test_bundles/dart2js-canvaskit-ui"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Linux run chrome-dart2wasm-canvaskit-ui suite",
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-                "os=Linux"
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-                    "dependency": "chrome_and_driver",
-                    "version": "version:111.0a"
-                }
-            ],
-            "tasks": [
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-                    "name": "run suite chrome-dart2wasm-canvaskit-ui",
-                    "parameters": [
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-                        "--suite=chrome-dart2wasm-canvaskit-ui"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "firefox",
+          "version": "version:106.0"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite firefox-dart2js-canvaskit-ui",
+          "parameters": [
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+            "--suite=firefox-dart2js-canvaskit-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2wasm-html-engine suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
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+        "web_tests/test_bundles/dart2wasm-html-engine"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Linux run chrome-dart2wasm-skwasm-ui suite",
-            "recipe": "engine_v2/tester_engine",
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-                "os=Linux"
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-                {
-                    "dependency": "chrome_and_driver",
-                    "version": "version:111.0a"
-                }
-            ],
-            "tasks": [
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-                    "name": "run suite chrome-dart2wasm-skwasm-ui",
-                    "parameters": [
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-                        "--suite=chrome-dart2wasm-skwasm-ui"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-dart2wasm-html-engine",
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+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2wasm-html-html suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
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         },
         {
-            "name": "Linux run chrome-full-dart2wasm-canvaskit-canvaskit suite",
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-                "os=Linux"
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-                "web_tests/test_bundles/dart2wasm-canvaskit-canvaskit"
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-                {
-                    "dependency": "chrome_and_driver",
-                    "version": "version:111.0a"
-                }
-            ],
-            "tasks": [
-                {
-                    "name": "run suite chrome-full-dart2wasm-canvaskit-canvaskit",
-                    "parameters": [
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-                        "--run",
-                        "--suite=chrome-full-dart2wasm-canvaskit-canvaskit"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-dart2wasm-html-html",
+          "parameters": [
+            "test",
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+            "--suite=chrome-dart2wasm-html-html"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2wasm-html-ui suite",
+      "recipe": "engine_v2/tester_engine",
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+        "device_type=none",
+        "os=Linux"
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         },
         {
-            "name": "Linux run chrome-full-dart2wasm-canvaskit-ui suite",
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-                "os=Linux"
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-                {
-                    "dependency": "chrome_and_driver",
-                    "version": "version:111.0a"
-                }
-            ],
-            "tasks": [
-                {
-                    "name": "run suite chrome-full-dart2wasm-canvaskit-ui",
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-                        "--suite=chrome-full-dart2wasm-canvaskit-ui"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
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+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-dart2wasm-html-ui",
+          "parameters": [
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+            "--suite=chrome-dart2wasm-html-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2wasm-canvaskit-canvaskit suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
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+        "web_tests/test_bundles/dart2wasm-canvaskit-canvaskit"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Mac run safari-dart2js-html-engine suite",
-            "recipe": "engine_v2/tester_engine",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Mac"
-            ],
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-                        "--run",
-                        "--suite=safari-dart2js-html-engine"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-dart2wasm-canvaskit-canvaskit",
+          "parameters": [
+            "test",
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+            "--suite=chrome-dart2wasm-canvaskit-canvaskit"
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+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2wasm-canvaskit-ui suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
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+        "web_tests/test_bundles/dart2wasm-canvaskit-ui"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Mac run safari-dart2js-html-html suite",
-            "recipe": "engine_v2/tester_engine",
-            "drone_dimensions": [
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-                "os=Mac"
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-                    "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
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-                    "name": "run suite safari-dart2js-html-html",
-                    "parameters": [
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-                        "--run",
-                        "--suite=safari-dart2js-html-html"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-dart2wasm-canvaskit-ui",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-dart2wasm-canvaskit-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-dart2wasm-skwasm-ui suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2wasm-skwasm-ui"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Mac run safari-dart2js-html-ui suite",
-            "recipe": "engine_v2/tester_engine",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Mac"
-            ],
-            "gclient_variables": {
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-            },
-            "dependencies": [
-                "web_tests/artifacts",
-                "web_tests/test_bundles/dart2js-html-ui"
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-                    "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
-                }
-            ],
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-                {
-                    "name": "run suite safari-dart2js-html-ui",
-                    "parameters": [
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-                        "--run",
-                        "--suite=safari-dart2js-html-ui"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-dart2wasm-skwasm-ui",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-dart2wasm-skwasm-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-full-dart2wasm-canvaskit-canvaskit suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2wasm-canvaskit-canvaskit"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Mac run safari-dart2js-canvaskit-canvaskit suite",
-            "recipe": "engine_v2/tester_engine",
-            "drone_dimensions": [
-                "device_type=none",
-                "os=Mac"
-            ],
-            "gclient_variables": {
-                "download_android_deps": false
-            },
-            "dependencies": [
-                "web_tests/artifacts",
-                "web_tests/test_bundles/dart2js-canvaskit-canvaskit"
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-                {
-                    "dependency": "goldctl",
-                    "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
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-            ],
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-                {
-                    "name": "run suite safari-dart2js-canvaskit-canvaskit",
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-                        "--suite=safari-dart2js-canvaskit-canvaskit"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-full-dart2wasm-canvaskit-canvaskit",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-full-dart2wasm-canvaskit-canvaskit"
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+          "script": "flutter/lib/web_ui/dev/felt"
+        }
+      ]
+    },
+    {
+      "name": "Linux run chrome-full-dart2wasm-canvaskit-ui suite",
+      "recipe": "engine_v2/tester_engine",
+      "drone_dimensions": [
+        "device_type=none",
+        "os=Linux"
+      ],
+      "gclient_variables": {
+        "download_android_deps": false
+      },
+      "dependencies": [
+        "web_tests/artifacts",
+        "web_tests/test_bundles/dart2wasm-canvaskit-ui"
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+          "dependency": "goldctl",
+          "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
         },
         {
-            "name": "Mac run safari-dart2js-canvaskit-ui suite",
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-            "drone_dimensions": [
-                "device_type=none",
-                "os=Mac"
-            ],
-            "gclient_variables": {
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-            "dependencies": [
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-                "web_tests/test_bundles/dart2js-canvaskit-ui"
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-                    "version": "git_revision:3a77d0b12c697a840ca0c7705208e8622dc94603"
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
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-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
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+          "name": "run suite chrome-dart2js-skwasm-skwasm_stub",
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-                    "script": "flutter/lib/web_ui/dev/felt"
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-                        "test",
-                        "--run",
-                        "--suite=chrome-full-dart2js-canvaskit-ui"
-                    ],
-                    "script": "flutter/lib/web_ui/dev/felt"
-                }
-            ]
+          "dependency": "chrome_and_driver",
+          "version": "version:111.0a"
+        }
+      ],
+      "tasks": [
+        {
+          "name": "run suite chrome-full-dart2js-canvaskit-ui",
+          "parameters": [
+            "test",
+            "--run",
+            "--suite=chrome-full-dart2js-canvaskit-ui"
+          ],
+          "script": "flutter/lib/web_ui/dev/felt"
         }
-    ]
-}
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/lib/web_ui/dev/generate_builder_json.dart b/lib/web_ui/dev/generate_builder_json.dart
index 68c89a7c4e5f9..60da64b70a60e 100644
--- a/lib/web_ui/dev/generate_builder_json.dart
+++ b/lib/web_ui/dev/generate_builder_json.dart
@@ -8,6 +8,8 @@ import 'felt_config.dart';
 
 String generateBuilderJson(FeltConfig config) {
   final Map<String, dynamic> outputJson = <String, dynamic>{
+    '_comment': 'THIS IS A GENERATED FILE. Do not edit this file directly.',
+    '_comment2': 'See `generated_builder_json.dart` for the generator code',
     'builds': <dynamic>[
       _getArtifactBuildStep(),
       for (final TestBundle bundle in config.testBundles)
@@ -88,7 +90,6 @@ Map<String, dynamic> _getBundleBuildStep(TestBundle bundle) {
     'drone_dimensions': <String>[
       'device_type=none',
       'os=Linux',
-      'cores=32',
     ],
     'generators': <String, dynamic>{
       'tasks': <dynamic>[
diff --git a/lib/web_ui/dev/test_runner.dart b/lib/web_ui/dev/test_runner.dart
index 6f5bdbfbb1b36..da5559b363a49 100644
--- a/lib/web_ui/dev/test_runner.dart
+++ b/lib/web_ui/dev/test_runner.dart
@@ -332,7 +332,14 @@ class TestCommand extends Command<bool> with ArgUtils<bool> {
     final List<TestBundle> bundles = _filterBundlesForSuites(filteredSuites);
     final ArtifactDependencies artifacts = _artifactsForSuites(filteredSuites);
     if (boolArg('generate-builder-json')) {
-      print(generateBuilderJson(config));
+      final String configString = generateBuilderJson(config);
+      final io.File configFile = io.File(path.join(
+        environment.flutterDirectory.path,
+        'ci',
+        'builders',
+        'linux_web_engine.json',
+      ));
+      configFile.writeAsStringSync(configString);
       return true;
     }
     if (isList || isVerbose) {