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how do i uninstall then install firefox again?

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New User

how do i uninstall then install firefox again?

i want to uninstall then reinstall firefox again,the reason for this is i keep on getting firefox not responding and a script on this page may be busy messages. No matter what i do i cannot stop these messages coming upIf i uninstall then reinstall it will it fix my problem?

5 REPLIES
SUMO Contributor

Re: how do i uninstall then install firefox again?

Usually this is not caused by a problem with Firefox program files, the components that get replaced when you uninstall/reinstall.

Since this symptom is commonly associated with Flash media, please try disabling the Flash Player plugin's protected mode. The steps are in this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox? For 64-bit Windows 7, the new or modified file should go in this folder:

C:\Windows\SysWOW64\Macromed\Flash
SUMO Contributor

Re: how do i uninstall then install firefox again?

If the problem continues, could you also try Firefox's Safe Mode? That's a standard diagnostic tool to bypass interference by extensions (and some custom settings). More info: Troubleshoot Firefox issues using Safe Mode.

You can restart Firefox in Safe Mode using

Help > Restart with Add-ons Disabled

In the dialog, click "Start in Safe Mode" (not Reset)

Any difference?

Site Moderator

Re: how do i uninstall then install firefox again?

Does it mention a specific script in that warning alert?

New User

Re: how do i uninstall then install firefox again?

every time it come,s up it has a differant script name.

Site Moderator

Re: how do i uninstall then install firefox again?

Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

Download a fresh Firefox copy and save the file to the desktop.

Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you lose personal data like bookmarks and passwords from profiles of other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.

If you keep having problems then also create a new profile.