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When I try to load Firefox I get eror messages the it isn;t a Win32 application. This just recently started. I have tried uninstalling andthe reinstalling but it does not fix the problem. Any ides?

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  • Last reply by cor-el

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When I go to open Firefox I get error message that Firefox isn't a Win32 application or I do not have permission to run this program.


Vista Home edition, PC TOOLs spyware and antivirus, ThreatFire and PC Tolls firewall.

When I go to open Firefox I get error message that Firefox isn't a Win32 application or I do not have permission to run this program. Vista Home edition, PC TOOLs spyware and antivirus, ThreatFire and PC Tolls firewall.

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Do a clean (re-)install:

  • Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
  • Do not remove personal data if you uninstall the current version.
  • 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.