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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Unable to install 5.0.1. Get message saying must restart to complete previous upgrade, but it never completes and I continuouisly get the "Restart" message.

  • 5 amsoshi
  • 4 sa na da wannan matsala
  • 2 views
  • Amsa ta ƙarshe daga esox50pounder

more options

Yesterday I upgraded to Firefox 5.0.1. My system is Win7 64-bit. The program asked me to restart to complete upgrade; however, even after restart I continue to get the same message. I attempted to "uninstall" via Windows Control Panel and even within the Mozilla Firefox program file. Again, the only message I get is to "restart to allow upgrade to complete.

Yesterday I upgraded to Firefox 5.0.1. My system is Win7 64-bit. The program asked me to restart to complete upgrade; however, even after restart I continue to get the same message. I attempted to "uninstall" via Windows Control Panel and even within the Mozilla Firefox program file. Again, the only message I get is to "restart to allow upgrade to complete.

All Replies (5)

more options

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

https://support.mozilla.com/en-US/kb/The%20program%20must%20close%20to%20allow%20a%20previous%20installation%20attempt%20to%20complete

Check and tell if its working.

more options

Thanks for your reply. I found that article while troubleshooting; however, those files do not exist. In other words, when I search for %APPDATA%, it takes me to a "roaming" folder, but there is no file named qpidata...

So, I am in a circular issue where I am prompted to restart windows to "finish upgrade" but even after restart, I continue to get the same "restart windows to finish..." message.

Anything else I should try?

more options

Install Firefox on Windows

https://support.mozilla.com/en-US/kb/Installing%20Firefox%20on%20Windows

Check and tell if its working.

more options

Do you have a VirtualStore folder?

  • C:\Users\<user>\AppData\Local\VirtualStore\Program Files\Mozilla Firefox

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

more options

Thanks for your suggestions. I am traveling until Friday, so I will put you suggestions into action then. I'll let you know the outcome.

Ideally I will completely uninstall Firefox and the reinstall. I did try to install Firefox on top of my current version, thinking this might fix the issue; however, I got the "...you must restart Windows to complete previous upgrade..."

Thanks again.