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how do you get rid of an unwanted pop-up

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how do you get rid of an unwanted pop-up

When we open up Firefox we get a pop-up that says in the upper left "Your PC's Performance is Poor" and in the box below that it says (after a little warning sign) Fix Windows Errors Immediately! and then a button to click for "Download Repair Tool". We can't seem to get rid of it. We have run a Norton Quick Scan & Full Scan and a scan using Malwarebytes, which none of it detected any problems.

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Re: how do you get rid of an unwanted pop-up

Scan for Malware

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.


Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Reset Firefox

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.

Update Firefox

Update Firefox to the latest version