partial revert of 374ea6a (#13018)

apps/browser/src/autofill/services/collect-autofill-content.service.spec.ts

@@ -21,7 +21,7 @@ jest.mock("../utils", () => {
   const utils = jest.requireActual("../utils");
   return {
     ...utils,
-    debounce: jest.fn((fn, wait) => setTimeout(() => fn(), wait)),
+    debounce: jest.fn((fn) => fn),
   };
 });
 

apps/browser/src/autofill/services/collect-autofill-content.service.ts

@@ -947,8 +947,7 @@ export class CollectAutofillContentService implements CollectAutofillContentServ
     }
 
     if (!this.mutationsQueue.length) {
-      // Collect all mutations and debounce the processing of those mutations by 100ms to ensure we don't process too many mutations at once.
+      requestIdleCallbackPolyfill(debounce(this.processMutations, 100), { timeout: 500 });
-      debounce(this.processMutations, 100);
     }
     this.mutationsQueue.push(mutations);
   };

apps/browser/src/autofill/utils/index.ts

@@ -37,7 +37,9 @@ export function requestIdleCallbackPolyfill(
     return globalThis.requestIdleCallback(() => callback(), options);
   }
 
-  return globalThis.setTimeout(() => callback(), 1);
+  const timeoutDelay = options?.timeout || 1;
+
+  return globalThis.setTimeout(() => callback(), timeoutDelay);
 }
 
 /**