Using Windows 7 tried to upgrade to Firefox v4.0. Computer must be restarted to complete the upgrade. Done that 6 times. Same result. Can't even uninstall Firefox to reinstall. What to do? Wish I had stuck to earlier version.
The icon on the taskbar is not the usual Firefox one. It is like an installation one. In short, I cannot open Firefox (I am having to use Internet Explorer to gain access to the Internet), I cannot get it to install properly and I am unable to uninstall it to start again with an earlier version. Every time that I attempt to open Firefox, I get the following message: "Your computer must be restarted to complete a previous upgrade [v4.0] of Firefox. Do you want to reboot now?" I have tried that half a dozen times with the same result. I have also used system restore to get back to an earlier status. that, too failed to resolve the Firefox problem.
It is probably because you are not properly closing Firefox. Restarting your system would make sure that Firefox had terminated, but you do not have to do that.
To properly close Firefox on Windows systems, use
:File > Exit or "Firefox:" button > Exit
When you get the message "Firefox is already running" it is too late, and you must force termination of Firefox through the Windows Task Manager before restarting Firefox. Windows 7 has a keyboard shortcut to save you a step "Ctrl+Shift+Esc" then on "Processes" tab, select "firefox.exe" and use the "End Process" button. More thorough would be to right-click on the "firefox.exec" and choose "End Process Tree".
You would find firefox.exe in a Mozilla folder in your program files, but y0u would not want to delete it there, you would need to use the Control Panel which you have already identified and do it from there -- but generally you would not need to do that, and there is nothing in what you have posted to indicate that you should. But if you did do that, then don't let the install start Firefox for you as you would want to use you existing desktop icon or method of starting Firefox, and should decline having Firefox install start Firefox for you. When the install starts then invoke Firefox in your normal manner. This should eliminate problems of creating a new profile rather than using your old profile.
Similar Messages
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Firefox will not start, or allow windows xp to uninstall the program. When I attempt to start the program, firefox says "your computer must be restarted to complete a previous upgrade of firefox. do you want to reboot now? It gives the same message after rebooting, and will not start, or uninstall. I also downloaded it again, same thing.
== This happened ==
Every time Firefox opened
== I downloaded an update.Follow '''''cor-el's''''' advice in this post:
https://support.mozilla.com/en-US/forum/1/606173 -
have also tried to reinstall older version of firefox and get same message
i have been trying to figure out how to fix this same issue as well for the past 2 hours or so. it is very upsetting that you can't even uninstall it try to redo it all or just use the old version. everything seemed to be ok untill i got to the set up part of the process that is when i kept getting the same message: ''your computer must be restarted to complete a previous upgrade of firefox. do you want to reboot now" and to no avail. please help. i really enjoyed my firefox/mozilla. now i can't even use it i have to go back to internet explorer for now...........
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Even when I try to restore 4.0, I get the same message, No matter how many times I restart, I get the same message. The upshot: I no longer can use Firefox.
Try to run the Firefox program once as Administrator (right-click firefox.exe: Run as Administrator).<br />
If that doesn't solve the problem then remove the Firefox program folder (C:\Program Files\Mozilla Firefox\) to do a clean reinstall.
Download a fresh Firefox copy and save the file to the desktop.
*Firefox 9.0.x: http://www.mozilla.org/en-US/firefox/all.html
Uninstall your current Firefox version, if possible.
*Do NOT remove personal data when you uninstall the current version or you lose your bookmarks and other data in the profile folder.
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.
*http://kb.mozillazine.org/Uninstalling_Firefox
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.
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Profile_backup
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall -
When I tried to download the new version of firefox I get an error message that says "your computer must be restarted to complete an earlier upgrade" when I restart it says the same thing. I cannot use firefox at all at the moment. When I try to uninstall in the control panel, the same message pops up.
If you have problems with updating or with the permissions then easiest is to download the full version and trash the currently installed version to do a clean install of the new version.
Download a new copy of the Firefox program and save the DMG file to the desktop
* Firefox 5.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Trash the current Firefox application to do a clean (re-)install
* Install the new version that you have downloaded
Your profile data is stored elsewhere in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder], so you won't lose your bookmarks and other personal data. -
A friend said she downloaded an update to Firefox (a version of 6, I believe) but didn't install the update, but the desktop icon was gone. The only way to launch Firefox was from the Programs folder. When clicking on the Firefox file, a "Setup" pop up window appeared stating "Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?" Clicking "No" does not launch Firefox and clicking "Yes" reboots the computer, but nothing changes after restart and the same series of events keeps re-occurring. When clicking on the safe mode file, Firefox was launched. I went to "Add/Remove Programs" and found Mozilla Firefox 3.6.3. When attempting to remove the program, the same reboot "Setup" pop up appears, and the same non-results as previously described, persisted. I deleted all Firefox files and deleted the update set up .exe files. I again tried to remove the Firefox 3.6.3 program, with the same outcome as the previous attempt(s). I went to the Firefox website and downloaded the updated Firefox 7.0.1 set up .exe file, saved and ran it. When I reached the Setup Wizard page that prompts a "Standard" or "Custom" installation, I clicked on Standard and the same reboot pop up window appeared, again with no change after the reboot. So I have a Program installed (Firefox 3.6.3) with no files, and which can not be removed, an executed update/download .exe for Firefox 7.0.1 that can not be completely installed due to the failure to update by reboot problem. I'm out of ideas on how to try to resolve these problems. Any help would be greatly appreciated! Thank you
Try a clean reinstall.
* Download a fresh Firefox copy and save the file to the desktop.
* Firefox 7.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Uninstall your current Firefox version.
* Do not remove personal data when you uninstall the current version or you lose your bookmarks and other data in the profile folder.
* 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.
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/Profile_backup -
I tried to sync Firefox mobile to my PC. Then I tried to upgrade to Firefox 4.0, which was a mistake, because I already had 4.0. I checked yes to install it again. Then I tried to uninstall and reinstall 4.0. That is when I started getting the error message.
i have been trying to figure out how to fix this same issue as well for the past 2 hours or so. it is very upsetting that you can't even uninstall it try to redo it all or just use the old version. everything seemed to be ok untill i got to the set up part of the process that is when i kept getting the same message: ''your computer must be restarted to complete a previous upgrade of firefox. do you want to reboot now" and to no avail. please help. i really enjoyed my firefox/mozilla. now i can't even use it i have to go back to internet explorer for now...........
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This problem arose when I attempted to upgrade my existing FireFox browser to the new FireFox 7. I clicked through the auto-update, but didn't think that anything changed, as the browser didn't look like the image in the feature explanation image I was viewing. I then tried to download Firefox 7, and when I tried to instal it, this process began.
I can't uninstall/install FireFox due to a pop-up that says: Your computer must be restarted to complete a previous upgrade of Firefox..." When restarted and attempted again, the same pop up appears and I am stuck in an infinite loop.
I cannot locate the Mozilla file within my program files to try and delete cantankerous upgrade components, which seems to resolve this issue for many people. See: https://support.mozilla.com/en-US/questions/796566
I also tried completely deleting Firefox, which didn't work either-- I ended up doing a system restore, only to be met with the same infinite loop.
Now, when I click on the Mozilla icon, nothing happens. No window opens, no error message, nothing.
Why can't I find the Mozilla folder in my Programs File but can see it in Control Panel "Add or Remove Programs" (though I can't uninstal due to infinite loop)?It is probably because you are not properly closing Firefox. Restarting your system would make sure that Firefox had terminated, but you do not have to do that.
To properly close Firefox on Windows systems, use
:File > Exit or "Firefox:" button > Exit
When you get the message "Firefox is already running" it is too late, and you must force termination of Firefox through the Windows Task Manager before restarting Firefox. Windows 7 has a keyboard shortcut to save you a step "Ctrl+Shift+Esc" then on "Processes" tab, select "firefox.exe" and use the "End Process" button. More thorough would be to right-click on the "firefox.exec" and choose "End Process Tree".
You would find firefox.exe in a Mozilla folder in your program files, but y0u would not want to delete it there, you would need to use the Control Panel which you have already identified and do it from there -- but generally you would not need to do that, and there is nothing in what you have posted to indicate that you should. But if you did do that, then don't let the install start Firefox for you as you would want to use you existing desktop icon or method of starting Firefox, and should decline having Firefox install start Firefox for you. When the install starts then invoke Firefox in your normal manner. This should eliminate problems of creating a new profile rather than using your old profile. -
When I try to start Firefox, I get the error message "Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?" I have rebooted several times to no avail. Get the same message when I try to uninstall Firefox
Just had this same problem. Based on other suggestions I found on the web, went to C:\Program Files\Mozilla Firefox and deleted all files that ended with upgrade and/or delete. Then I was able to uninstall Firefox and then reinstalled. Hope this helps!
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I had an old version of Firefox and uninstalled it. Then I installed the 5.0 version. BUT, in the setup wizard it says "Your computer must be restarted to complete a previous uninstall of Firefox. Do you want to reboot now?" I choose "YES" and the computer reboots, but when I run the setup wizard again, it says the same thing. I have reinstalled it 8 times, and it says the same thing......I have searched my computer for it, and can't find what it's talking about!! HELP!!!!!!
Cor-el:
Thanks so much for your help, it is very much appreciated. -
Can not make FF my default browser...When asked to make, I get "Your computer must be restarted to complete a previous upgrade of FF". After restart, it's the same thing all over again. I have explorer & chrome installed on my PC.
== This happened ==
Every time Firefox opened
== A few monts ago.It is probably because you are not properly closing Firefox. Restarting your system would make sure that Firefox had terminated, but you do not have to do that.
To properly close Firefox on Windows systems, use
:File > Exit or "Firefox:" button > Exit
When you get the message "Firefox is already running" it is too late, and you must force termination of Firefox through the Windows Task Manager before restarting Firefox. Windows 7 has a keyboard shortcut to save you a step "Ctrl+Shift+Esc" then on "Processes" tab, select "firefox.exe" and use the "End Process" button. More thorough would be to right-click on the "firefox.exec" and choose "End Process Tree".
You would find firefox.exe in a Mozilla folder in your program files, but y0u would not want to delete it there, you would need to use the Control Panel which you have already identified and do it from there -- but generally you would not need to do that, and there is nothing in what you have posted to indicate that you should. But if you did do that, then don't let the install start Firefox for you as you would want to use you existing desktop icon or method of starting Firefox, and should decline having Firefox install start Firefox for you. When the install starts then invoke Firefox in your normal manner. This should eliminate problems of creating a new profile rather than using your old profile. -
Why do I get a, "your computer must be restarted to complete a previous upgrade" message
I guess Im having the same issues as some of the others but I cant seem to remove. I just wanted to upgrade to FF7 and now I continue to get the message above. Ive taken all the steps suggested at: http://kb.mozillazine.org/Uninstalling_firefox The issue is it wont even allow me to Remove-I go Ctrl Panel, Add/Remove and click Remove and it gives me the same message, "Your computer must be restarted to complete a previous upgrade of FF"-Asks do I wish to reboot-Ive click yes 100 times and nothing changes.
Im at a loss-I've logged on as a user and Administrator and still get the same messagesActually, I figured it out...apparently I had too many add-ons...? Wouldn't allow me to click on tab items or type in Yahoo! search...
Removed some unwanted add-ons and extensions and I'm all good.
Thanks for the help! -
I keep getting the following message when I try to install firefox.."your computer must be restarted to complete a previous install of firefox" I've restarted numerous times..keep getting the same message
Have a look at the solution to a similar problem: https://support.mozilla.org/en-US/questions/921375?s=%22Your+computer+must+be+restarted+to+complete+a+previous+upgrade+of+Firefox.+Do+you+want+to+reboot+now%3F%22&r=0&e=sph&as=s
If that doesn't work, you can uninstall FF and do a clean install. You'll prob lose your bookmarks, history, etc, though, so if you do this set up Sync first! https://support.mozilla.org/en-US/kb/what-firefox-sync-and-how-do-i-use-it -
A previous upgrade was not completed!
Rebooting does not work.
Can't even uninstall 3.6.18. Get the same '"must reboot'" message.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.
*http://kb.mozillazine.org/Show_hidden_files_and_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.
* Firefox 5.0.x: http://www.mozilla.com/en-US/firefox/all.html
* 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.
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/Profile_backup -
When I click on the FF setup icon on my desktop, I only get as far as being able to select "Standard" or "Cutsom" Setup then a box pops up saying "Your computer must be restarted" and everything.
I've Have tried restarting my computer SERVERAL times, Reinstalling the setup, and looking in Task Manager for "firefox.exe"... nothing was there.
I also tried to uninstall the setup but I got that same message, so I can't uninstall it either.
Any suggestions at all??
I'm running Windows Vista if that helps any.
Thank YouIt should not be necessary to reboot the computer to complete an update.<br />
If a reboot is needed then that usually means that some (security) software is blocking files or you need elevated (UAC) permissions to make changes to files or registry keys.<br />
Run the Firefox program once as Administrator (right-click: Run as Administrator).<br />
If that doesn't solve the problem then remove the Firefox program folder to do a clean reinstall.<br />
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