Steps to reset Firefox to default settings
- Step 1: Open Firefox, click the menu icon, which featured by a 3 line icon at the top right corner, choose Help, then go to Troubleshooting Information.
- Step 2: On the right box, click Refresh Firefox, a dialogue box will appear, click Refresh Firefox, and wait for the process to be done.
- Step 3: Click Finish, the old Firefox data folder will appear on your Windows home screen. Go to Firefox again.
Result: If it displays a fox running in the middle, it means you have reset it to default settings.