[Firefox for Android] 'Open in a new window' button doesn't work on the User Rules tab

### AdGuard Extension version

4.2.209

### Browser version

Firefox nightly 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

STR:
1. Go to Settings > User rules tab
2. Click on 'Open in a new window' button

### Expected Behavior

_No response_

### Screenshots

Screenshot 1:

### Additional Information

_No response_