We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

firefox won't load, says has to close to uninstall previous attempt, repeats each time I try to download and install

  • 1 reply
  • 9 have this problem
  • 4 views
  • Last reply by cor-el

cackley
cackley
more options

I'm using IE to download firefox 3.6. I click run to download, click run for setup. Then it says it must close to finish a previous uninstall. I get the firefox.exe icon but each time I try to run it, I get the above message and then it reboots but trying to run firefox is the same.

I'm using IE to download firefox 3.6. I click run to download, click run for setup. Then it says it must close to finish a previous uninstall. I get the firefox.exe icon but each time I try to run it, I get the above message and then it reboots but trying to run firefox is the same.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See:

Remove the files in the updates and updates\0 folder: 

C:\Documents and Settings\<user>\Local Settings\Application Data\Mozilla\Firefox\Mozilla Firefox\updates
(%USERPROFILE%\Local Settings\Application Data\Mozilla\Firefox\Mozilla Firefox\updates)

Do a clean (re)install:

  • Download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.
  • Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
  • Don't remove personal data if you uninstall the current version.
  • It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Your bookmarks and other profile data are stored elsewhere (not in the Firefox program folder) and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.