This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

download of update not completed

more options

When I downloaded the latest upgrade, I was told to reboot, which I did. Since then every time I try to access the net I get a message saying my computer must be restarted to complete a previous upgrade.Do you want to reboot now? This goes on a loop, so I tried uninstalling Firefox, only to get message as above. What do I do?

When I downloaded the latest upgrade, I was told to reboot, which I did. Since then every time I try to access the net I get a message saying my computer must be restarted to complete a previous upgrade.Do you want to reboot now? This goes on a loop, so I tried uninstalling Firefox, only to get message as above. What do I do?

Modified by malcolmprice

Chosen solution

Finally managed to completely uninstall Firefox, which became only way to solve my problem. Another day I'lltry downloading firefox again; fingers crossed it works ok. Thanks for all your help. Malcolm

Read this answer in context 👍 0

All Replies (8)

more options

Is this a Firefox message, or a Windows one?

Have you tried reinstalling Firefox?

more options

I think it was a Windows message. I tried reinstalling Firefox, but message came up saying that previous update had to be completed first--talk about catch22!!

more options

I would make sure you've fully shut down Windows and Started it back up (not put it to sleep, or hibernate). Then, if that doesn't work, do a System Restore.

more options

Try to run the Firefox program once as Administrator (right-click: Run as Administrator).

more options

tried it, but afraid it didn't work. Any further suggestions?

more options

Tried it,but same message came up, so no further forward. Any further ideas?

more options

If files already have been downloaded then remove the files in the updates and updates\0 folder. You can also delete active-update.xml and possibly updates.xml (this will clear the update history).

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

You can also check the Firefox program folder (C:\Program Files\Mozilla Firefox\) for files that are pending an update or for a possible updates folder.

more options

Seçilmiş Həll

Finally managed to completely uninstall Firefox, which became only way to solve my problem. Another day I'lltry downloading firefox again; fingers crossed it works ok. Thanks for all your help. Malcolm