This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Latest Firefox version (updated on 8/21/2010) will not start.

  • 1 reply
  • 11 have this problem
  • 1 view
  • Last reply by cor-el

amphibian1828
amphibian1828
more options

Actually, problem started early on 8/21/2010 - before I upgraded (through IE, since Firefox will not start). When I try to start I see what looks like just the top of a Firefox browser page that seems to be trying to open GMail - which is my standard mail service. However, this appears for less than one second and then all that is visible is the Firefox application icon in the task bar. This icon does not work - I cannot open the window via this icon. I am forced to close the application using the task manager (which, erroneously, does show the application as "Running").

Actually, problem started early on 8/21/2010 - before I upgraded (through IE, since Firefox will not start). When I try to start I see what looks like just the top of a Firefox browser page that seems to be trying to open GMail - which is my standard mail service. However, this appears for less than one second and then all that is visible is the Firefox application icon in the task bar. This icon does not work - I cannot open the window via this icon. I am forced to close the application using the task manager (which, erroneously, does show the application as "Running").

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can try to right click that icon on the Task bar and choose Move or Resize to see if that can make the Firefox window visible.

You can also try http://kb.mozillazine.org/Corrupt_localstore.rdf (caution: do not delete the localstore.rdf file in the Firefox program installation folder)

Create a new profile as a test to check if your current profile is causing the problems

See Basic Troubleshooting: Make a new profile

There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins"

If that new profile works then you can transfer some files from the old profile to that new profile (be careful not to copy corrupted files)

See http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox