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

Firefox 3.5.1 running on Vista has stopped working. No error messages. Have tried to uninstall and also install newer version, and get a message saying I must first close Firefox (which of course is not visibly running)

  • 2 ŋuɖoɖowo
  • 9 masɔmasɔ sia le wosi
  • 5 views
  • Nuɖoɖo mlɔetɔ Moses

more options

Firefox 3.5.1 running on Vista has stopped working, no error messages. Tried to uninstall and install updated version. Get message that I must first close Firefox, however it is not visibly running.

This happened

Not sure how often

I restored my system to an earlier date , December 2009

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; Dealio Toolbar 3.1.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618; .NET4.0C; AskTbWCL/5.8.0.12304)

Firefox 3.5.1 running on Vista has stopped working, no error messages. Tried to uninstall and install updated version. Get message that I must first close Firefox, however it is not visibly running. == This happened == Not sure how often == I restored my system to an earlier date , December 2009 == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; Dealio Toolbar 3.1.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618; .NET4.0C; AskTbWCL/5.8.0.12304)

Ŋuɖoɖo si wotia

Firefox may not be running visibly but is probably running in the background. It is in the task manager. To access the task manager go to Start and type in the search field taskmgr. That will open the Task Manager process. Then go to Processes tab and end firefox.exe. After ending that process, close Task Manager and try running the installation/uninstallation again.

Xle ŋuɖoɖo sia le goya me 👍 3

All Replies (2)

more options

Ɖɔɖɔɖo si wotia

Firefox may not be running visibly but is probably running in the background. It is in the task manager. To access the task manager go to Start and type in the search field taskmgr. That will open the Task Manager process. Then go to Processes tab and end firefox.exe. After ending that process, close Task Manager and try running the installation/uninstallation again.

more options

You should update to the latest version. See Update Firefox to the latest release