[Firefox for Android] If you visit a website before the extension is loaded, ads will appear

### AdGuard Extension version

4.2.240

### Browser version

Firefox 121 for Android

### OS version

Android 13

### What filters do you have enabled?

_No response_

### What Stealth Mode options do you have enabled?

_No response_

### Issue Details

When launching the Firefox browser, the extension may take longer to load than the page in the browser. In this case, ads may appear on the page.

### Expected Behavior

_No response_

### Screenshots

Screenshot 1:

### Additional Information

_No response_