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!

1. This could be only websites advertising it. 2. It could be a trojan infection, use

• TDSS Killer
• Hitman Pro

3. It could be semi-malicious firefox extension.

• inspect your firefox extensions
• Use Adwcleaner from bleepingcomputer.com

I did use both method's, and I have not seen this popups since.

Thanks a lot