We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

FF works on startup but will not open after closing until I reboot.

  • 1 valiny
  • 3 manana an'ity olana ity
  • 1 view
  • Valiny farany nomen'i FredMcD

more options

Until today everything okay. This evening tried to re-open Firefox and it would not. Rebooted computer & Firefox opened OK but after I closed it an tried to reopen, it would not start. Now it appears that Firefox will only open on a fresh restart of my computer. Running W-7 64 bit.

Until today everything okay. This evening tried to re-open Firefox and it would not. Rebooted computer & Firefox opened OK but after I closed it an tried to reopen, it would not start. Now it appears that Firefox will only open on a fresh restart of my computer. Running W-7 64 bit.

All Replies (1)

more options

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.


Start Firefox in Safe Mode {web Link} by holding down the <Shift (Mac Options) > key, and then starting Firefox. Is the problem still there?