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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Mozilla will not open, start or go to any page on my Mac.

  • 1 freagra
  • 1 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó FredMcD

more options

I cannot access any settings and have tried reinstalling several times.

I changed settings on history and cookies prior to restarting because Firefox was sooooo slow. I have tried doing restarts, reinstalls, repairs to HD, etc. Nothing is working and I have a lot of saved information on Firefox that I can no longer access to even backup. What shall I do?

Thank you in advance for the help.

I cannot access any settings and have tried reinstalling several times. I changed settings on history and cookies prior to restarting because Firefox was sooooo slow. I have tried doing restarts, reinstalls, repairs to HD, etc. Nothing is working and I have a lot of saved information on Firefox that I can no longer access to even backup. What shall I do? Thank you in advance for the help.

All Replies (1)

more options

Rename the C:\Program Files (x86)\Mozilla Firefox folder.

Then

Download Firefox Full Installer All languages {web link}

If there are still issues, rename the user profile folder.