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.

Avatar for Username

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Firefox 4 upgrade failed, will not open or let me uninstall it without a computer restart message

  • 2 antwoorde
  • 29 hierdie probleem
  • 16 views
  • Laaste antwoord deur superboss88

wolfae
wolfae
more options

I tried to update my Firefox to version 4 last night. When it was complete, it asked me to restart my computer.

After restarting the computer multiple times, I am continuing to get the message when trying to open Firefox.

I also cannot uninstall Firefox using the "Add/Remove Programs" in Windows without the message appearing, nor can I run the installation program again.

No matter what I do -- whether that is restart the computer, try to install the software package again, or uninstall it and start over -- I get this message:

"Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?"

I am on a Windows XP machine.

I tried to update my Firefox to version 4 last night. When it was complete, it asked me to restart my computer. After restarting the computer multiple times, I am continuing to get the message when trying to open Firefox. I also cannot uninstall Firefox using the "Add/Remove Programs" in Windows without the message appearing, nor can I run the installation program again. No matter what I do -- whether that is restart the computer, try to install the software package again, or uninstall it and start over -- I get this message: "Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?" I am on a Windows XP machine.

All Replies (2)

wolfae
wolfae Vraag-eienaar
more options

By the way, I also re-downloaded the older Firefox 3.6.17 installation package and tried to install that over what is currently sitting on my system. I'm getting the same errors.

Someone help me figure out to uninstall Firefox completely so I can start over! Thanks!

superboss88
superboss88
more options

hey i had the same problem got it fixed so if someone has this problem. download "unlocker" here : link text go to the directory where firefox is installed (C:\Program Files\Mozilla Firefox) use unlocker to delete the folder by right clicking on the folder and selecting unlocker then use the delete action. after that you can just install firefox with no problem. and yes all your bookmarks and everything wil still be there since this is not saved in this directory