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Unable to update Firefox on Mac OS X 10.5.8 due to insufficient priveledges, but I'm not sure what that means?

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Hello, I went to upgrade my version of Firefox and was able to download the newer version, but when I went to install it, the system asked if I wanted to replace the old with the new (the only option given), and when I said 'yes' the system popped up with "you are unable to do this because you have insufficient privileges." Not sure what that means. I have been able to download other things just fine.

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-> How to download and install Firefox on Mac

Check and tell if its working.

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If there are problems with updating or with the permissions then easiest is to download the full version and trash the currently installed version to do a clean install of the new version.

Download a new copy of the Firefox program and save the disk image (dmg) file to the desktop

  • Trash the current Firefox application to do a clean (re-)install
  • Install the new version that you have downloaded

Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data if you uninstall and (re)install Firefox.