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Trying to upgrade from 3.6.18 to 5.0,b5. I am stopped from loading by message "Your computer must be restarted to complete a previous upgrade of FireFox". Reboot does not help. Can't uninstall 3.6.18. Get same message. Please help!

  • 2 odpovědi
  • 3 mají tento problém
  • 1 zobrazení
  • Poslední odpověď od Hasan

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A previous upgrade was not completed! Rebooting does not work. Can't even uninstall 3.6.18. Get the same '"must reboot'" message.

A previous upgrade was not completed! Rebooting does not work. Can't even uninstall 3.6.18. Get the same '"must reboot'" message.

Všechny odpovědi (2)

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If files already have been downloaded then you need to remove the files in the updates and updates\0 folder. You can delete active-update.xml and updates.xml as well if present.

C:\Program Files\Mozilla Firefox\updates Vista:

C:\Users\<user>\AppData\Local\Mozilla\Firefox\Mozilla Firefox\updates
(%LOCALAPPDATA%\Mozilla\Firefox\Mozilla Firefox)

The "Application Data" folder in XP/Win2K and the "AppData" folder in Vista/Windows 7 are hidden folders.


If there are problems with updating then best is to download the full version and uninstall the currently installed version.

Download a fresh Firefox copy and save the file to the desktop.

  • Uninstall your current Firefox version.
  • Do not remove personal data when you uninstall the current version.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • 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 in the Firefox Profile 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.


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The program must close to allow a previous installation attempt to complete

Check and tell if its working.