We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

How to remove a bug/virus that was embedded in a Mozillas update?

  • 2 valiny
  • 1 manana an'ity olana ity
  • 2 views
  • Valiny farany nomen'i Mimmitroll

more options

After an update from Mozilla, I caught a bug that made certain pages unable to be viewed, and made the touch pad/mouse flip settings left/right side. I have ran Norton on this laptop since I bought it, and it find nothing. Malware finds nothing. I've been deleting all cache & cookies daily, and that only help temporarely. It's a bug that only work/is active when connected to the internet. If I work offline, the mouse & touchpad stay set. Also if I use explorer, it stays set. I've tried to un-install Firefox to see if the bug would go away, but as soon as I re-installed it, it was back.. What is it and how do I get rid of it?

After an update from Mozilla, I caught a bug that made certain pages unable to be viewed, and made the touch pad/mouse flip settings left/right side. I have ran Norton on this laptop since I bought it, and it find nothing. Malware finds nothing. I've been deleting all cache & cookies daily, and that only help temporarely. It's a bug that only work/is active when connected to the internet. If I work offline, the mouse & touchpad stay set. Also if I use explorer, it stays set. I've tried to un-install Firefox to see if the bug would go away, but as soon as I re-installed it, it was back.. What is it and how do I get rid of it?

All Replies (2)

more options

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

more options

Thank you for the reply! I tried it, but sorry - it didn't work! I restarted the machine and after 2 minutes, the pages froze and the mouse flipped sides again..