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How do I get Firefox 18.0.1 (Windows XP 32-bit) to complete its update?


I was having some problems with Firefox and so, a week ago, I chose to "refesh" (the term I believe the Moilla website window used) with a download of Firefox 18.0.1. I followed all instructions and was not aware of any difficulties in the download or installation until, having restarted my computer to complete the update, I could not do anything involving the Internet because a notice from SETUP showed each and every time: "Your computer must be restarted to complete a previous upgrade of FireFox. Do you want to reboot now?" Ultimately, I had to install Windows Internet Explorer 8 in order to resume my activities, but the invitation to restart appears at the most inopportune times. Please note: NOTHING associated with the actual application (including any and all attempts to uninstall using "Add or Remove Programs" and other Uninstall programs) can be started because the SETUP message precludes it.

Additional System Details


  • User Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 5.1; Trident/4.0; BTRS100021; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; WinTSI 20.11.2009; .NET CLR 2.0.50727; .NET4.0C; .NET4.0E; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; NET_mmhpset; BOIE8;ENUSMSE)

More Information

Alas, even the Automatic and Manual attempts to troubleshoot are stopped with the SETUP message. Remember, I am in IE8 writing this, so the references to the FireFox screen don't apply.

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Helpful Reply

Sorry you are having problems.

Not suer I understand what is happening, and I wonder if you have somehow tried the wrong site.

If you have a recent version of Firefox then by default it upgrades automatically about every six weeks. (Or more frequently e.g. 18 -> 18.0.1 -> 18.0.2)

You will not normally need to uninstall Firefox to upgrade, and should certainly normally avoid any options to remove personal information (because that destroys bookmarks and passwords etc.)

Check that your security related software is not interfering by blocking changes. If that is not the problem then you should be able to delete the update files (delete "active-update.xml", "updates.xml", and the "updates" folder). Please see these articles

Then get the latest version from

and run the installer to install over the existing Firefox 18.

Question owner

I haven't been able to locate any FireFox update files to delete but I'm working on it.

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624 solutions 8063 answers

Did you note that some files may be hidden

Modified by John99