This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Unable to uninstall very ole version of Firefox which may be interfering with a new download

  • 1 resposta
  • 0 have this problem
  • 1 view
  • Last reply by cor-el

more options

Yesterday Firefox worked great. Today I failed to launch. I tried reinstalling it. If installed correctly but fails to launch. I thought I would try a clean install by first deleting all previously installed versions. One very old version "Mozilla Firefox 62.0.3 (x64 en US) fails to uninstall. Any Ideas on How to delete that file?

Yesterday Firefox worked great. Today I failed to launch. I tried reinstalling it. If installed correctly but fails to launch. I thought I would try a clean install by first deleting all previously installed versions. One very old version "Mozilla Firefox 62.0.3 (x64 en US) fails to uninstall. Any Ideas on How to delete that file?
Capturas de pantalla anexas

All Replies (1)

more options

It is possible that this is only a leftover, orphaned, registry key and that the installation it points to no longer exists. In that case you can cleanup the registry yourself or use a registry cleanup utility.

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Mozilla Firefox (????)