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.

Firefox not starting up

  • 2 replies
  • 4 have this problem
  • 6 views
  • Last reply by cor-el

mesygrl13
mesygrl13
more options

For the past couple of weeks, Firefox will not start up when I click on the icon on my desktop or the icon my toolbar. I have been forced to use IE because Firefox never works for me. It has gotten worse over the past couple of weeks. I just click, it lights up, then it is no longer lit up and the program never opens. I have tried the troubleshooting topics, including creating a new profile, but nothing has worked. I am running Windows 7 on a Sony Vaio Laptop. Is there anything else I can do to fix this problem?

For the past couple of weeks, Firefox will not start up when I click on the icon on my desktop or the icon my toolbar. I have been forced to use IE because Firefox never works for me. It has gotten worse over the past couple of weeks. I just click, it lights up, then it is no longer lit up and the program never opens. I have tried the troubleshooting topics, including creating a new profile, but nothing has worked. I am running Windows 7 on a Sony Vaio Laptop. Is there anything else I can do to fix this problem?

All Replies (2)

iMarshmellow
iMarshmellow
more options

Refer to these articles:

Modified by iMarshmellow

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

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See: