diff --git a/api/Navigator.json b/api/Navigator.json
index 1a5a025b8d5f2e..ce2730e8c778ba 100644
--- a/api/Navigator.json
+++ b/api/Navigator.json
@@ -4904,7 +4904,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
diff --git a/api/Permissions.json b/api/Permissions.json
index 8ef431e48f7677..f12459c525e921 100644
--- a/api/Permissions.json
+++ b/api/Permissions.json
@@ -651,7 +651,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
diff --git a/api/WakeLock.json b/api/WakeLock.json
index 8003b6d79b27a8..1c89186acb91c8 100644
--- a/api/WakeLock.json
+++ b/api/WakeLock.json
@@ -14,7 +14,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "124"
+            "version_added": "preview"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -54,7 +54,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
diff --git a/api/WakeLockSentinel.json b/api/WakeLockSentinel.json
index 5b2b29f98e9454..03f6ddec67d84d 100644
--- a/api/WakeLockSentinel.json
+++ b/api/WakeLockSentinel.json
@@ -14,7 +14,7 @@
           "chrome_android": "mirror",
           "edge": "mirror",
           "firefox": {
-            "version_added": "124"
+            "version_added": "preview"
           },
           "firefox_android": "mirror",
           "ie": {
@@ -54,7 +54,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -96,7 +96,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -137,7 +137,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
@@ -178,7 +178,7 @@
             "chrome_android": "mirror",
             "edge": "mirror",
             "firefox": {
-              "version_added": "124"
+              "version_added": "preview"
             },
             "firefox_android": "mirror",
             "ie": {
diff --git a/http/headers/Permissions-Policy.json b/http/headers/Permissions-Policy.json
index daa60788bfab65..fb8ce075f1b552 100644
--- a/http/headers/Permissions-Policy.json
+++ b/http/headers/Permissions-Policy.json
@@ -1254,7 +1254,7 @@
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": "124"
+                "version_added": "preview"
               },
               "firefox_android": "mirror",
               "ie": {