diff --git a/editors/vscode/client/tools/formatter.ts b/editors/vscode/client/tools/formatter.ts
index 9bdcf3765bfa1..d354956be9881 100644
--- a/editors/vscode/client/tools/formatter.ts
+++ b/editors/vscode/client/tools/formatter.ts
@@ -160,6 +160,10 @@ export default class FormatterTool implements ToolInterface {
       "wxss",
       "pcss",
       "postcss",
+      // LESS
+      "less",
+      // SCSS
+      "scss",
       // GraphQL
       "graphql",
       "gql",
@@ -176,6 +180,7 @@ export default class FormatterTool implements ToolInterface {
       "mkd",
       "mkdn",
       "mkdown",
+      "mdx",
       "ronn",
       "scd",
       "workbook",
diff --git a/editors/vscode/package.json b/editors/vscode/package.json
index d701627578f3f..d57a19a3046cd 100644
--- a/editors/vscode/package.json
+++ b/editors/vscode/package.json
@@ -285,14 +285,18 @@
   "activationEvents": [
     "onLanguage:astro",
     "onLanguage:css",
+    "onLanguage:graphql",
     "onLanguage:handlebars",
     "onLanguage:html",
     "onLanguage:javascript",
     "onLanguage:javascriptreact",
     "onLanguage:json",
     "onLanguage:jsonc",
+    "onLanguage:less",
     "onLanguage:markdown",
+    "onLanguage:mdx",
     "onLanguage:svelte",
+    "onLanguage:scss",
     "onLanguage:toml",
     "onLanguage:typescript",
     "onLanguage:typescriptreact",