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keep getting error:Cannot connect to update server.Partial update...

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  • 1 has this problem
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  • Last reply by cor-el

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I am using FF 6.0.1 I keep seeing a window pop up that says something like:

connect to update server partial update failed

Have no idea what is going on, this has been popping up for quite awhile. When I chose the RETRY button, it sits there and the long bar that shows the progress never fills in.. Thank u for any help Carla

I am using FF 6.0.1 I keep seeing a window pop up that says something like: connect to update server partial update failed Have no idea what is going on, this has been popping up for quite awhile. When I chose the RETRY button, it sits there and the long bar that shows the progress never fills in.. Thank u for any help Carla

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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.


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

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