Tuesday, February 19, 2013

Can’t update or uninstall Firefox

While trying to install Firefox 19 over previous Firefox 17 installation the following issue occurred.

image

Symptoms:

  • When trying to run installationpackage for Firefox 19 message appears showing “Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?”
  • When trying to uninstall Firefox 17 same message occurs.
  •  

Restarting didn’t make any difference. Same message after 5 restarts.

Solution:

  • Delete all files in Mozilla Firefox folder ending with –delete
  • Delete file firefox-exe.moz-upgrade in Mozilla Firefox installation folder.
  • Run uninstall again, and then install Firefox 19.

References:

http://support.mozilla.org/en-US/questions/757325

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