Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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.

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

can't get Firefox to start after performing OS security updates

  • 1 reply
  • 3 have this problem
  • 8 views
  • Last reply by user633449

more options

Just did the most recent updates on OS-X 10.6.8, and now I can't get Firefox to start. It comes up and says that it is having problems (the "embarassing" window) and that I should try closing tabs. However, it's not responding at all, so finally I have to resort to force quit. I've try cold starting the computer with no effect.

Just did the most recent updates on OS-X 10.6.8, and now I can't get Firefox to start. It comes up and says that it is having problems (the "embarassing" window) and that I should try closing tabs. However, it's not responding at all, so finally I have to resort to force quit. I've try cold starting the computer with no effect.

Modified by rondans

Chosen solution

Let's try this. You said you are trying to start Firefox 8 on the problem machine? Can you try downloading Firefox 11 from www.getfirefox.com, install that, restart your computer, then see if it still acts up?

If it does, try running Firefox in Safe mode.

Read this answer in context 👍 1

All Replies (1)

more options

Chosen Solution

Let's try this. You said you are trying to start Firefox 8 on the problem machine? Can you try downloading Firefox 11 from www.getfirefox.com, install that, restart your computer, then see if it still acts up?

If it does, try running Firefox in Safe mode.