Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

ابحث في الدعم

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

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

  • 1 (رد واحد)
  • 3 have this problem
  • 1 view
  • آخر ردّ كتبه 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?