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How do I remove PC Performer Manager from Firefox extensions?

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New User

How do I remove PC Performer Manager from Firefox extensions?

I installed some software called PC Performer Manager, which included an extension in Firefox. I uninstalled the software (I think) because I didn't like it and disabled the extension, but it is still there. I have even removed Firefox from my system and when I reinstalled the software the extension was still there! How do I get this stubborn program off my computer? Thank you so much!

17 REPLIES
Site Moderator

Re: How do I remove PC Performer Manager from Firefox extensions?

New User

Re: How do I remove PC Performer Manager from Firefox extensions?

Okay, I deleted that particular file listed from the program folder, but under the troubleshoot menu it is still listed and it is still listed under my extensions as disabled. I rebooted firefox to same effect.

Site Moderator

Re: How do I remove PC Performer Manager from Firefox extensions?

Hello,

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!

Thank you.

New User

Re: How do I remove PC Performer Manager from Firefox extensions?

Nope. Still didn't work. It is still listed in both places.

New User

Re: How do I remove PC Performer Manager from Firefox extensions?

Is it possible it is still present somewhere else in my computer?

Site Moderator

Re: How do I remove PC Performer Manager from Firefox extensions?

Extensions that do not have a "Remove" button are installed by other software and are not under control of the Firefox extension manager.
Such globally installed extensions are usually found via a registry scan or are installed in a location that Firefox scans for installed extensions.

Extensions installed this way need to be removed via the settings (options/preferences) of the program that has added this extension.
In Firefox you an only disable such an extension.

New User

Re: How do I remove PC Performer Manager from Firefox extensions?

Can you explain more clearly the steps on how to remove this from my registry? Thank you.

Site Moderator

Re: How do I remove PC Performer Manager from Firefox extensions?

You can use the registry editor to see if you can locate the extension via this key:

  • HKEY_LOCAL_MACHINE\Software\Wow6432Node\Mozilla\Firefox\Extensions\<extension-id>

Then you can see where the extension is located on the hard drive and probably identify which program installed.
You can remove the <extension-id> registry key of this extension to remove it from Firefox.

Be careful with editing the registry as there is NO UNDO possible: all changes are applied immediately.Be careful with editing the registry as there is NO UNDO possible: all changes are applied immediately.

Grand Master

Re: How do I remove PC Performer Manager from Firefox extensions?

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.

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