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Installation won't complete, but Firefox can't be uninstalled, because installation isn't complete.

Posted

Repeated requests to restart computer after update to 18 don't work.

Additional System Details

Installed Plug-ins

  • Google Update
  • McAfee MSS+ NPAPI Plugin
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.4
  • 4.1.10329.0
  • Shockwave Flash 11.1 r102
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • BlackBerry WebSL Browser Plug-In
  • NPWLPG
  • Office Plugin for Netscape Navigator

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

John99
  • Top 25 Contributor
  • Moderator
622 solutions 8026 answers

Take care when following instructions do NOT use any option to remove personal information,because it will destroy your bookmarks and passwords etc.

Have you got security related software of any sort installed

  • if so what
  • could that be blocking the install

See also

cor-el
  • Top 10 Contributor
  • Moderator
10756 solutions 96800 answers

Helpful Reply

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

Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

Question owner

Here, I have a solution (from Windows 8). In the "Start" screen, right click on the Firefox app. Then click the "open file location" at the bottom of your screen. Highlight and delete all Mozilla files. THEN you can do a fresh download from firefox.com. (Here's what didn't help: starting in safe mode, uninstalling the software, running as Administrator.) Good luck!

cor-el
  • Top 10 Contributor
  • Moderator
10756 solutions 96800 answers

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