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new version not installing, telling me to reboot to finish installing previous version

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  • 10 have this problem
  • Last reply by cor-el

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I was updating to firefox 4. When I got to the point of installing firefox 4 it told me to restart the pc to complete previous version, before continueing.

I was updating to firefox 4. When I got to the point of installing firefox 4 it told me to restart the pc to complete previous version, before continueing.

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If a reboot is needed then that usually means that some (security) software is blocking files.

Do a clean (re-)install:

  • Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
  • Do not 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.