Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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.

ఇంకా తెలుసుకోండి

have downloaded4.0.1 three times and yet it's not running??

  • 1 ప్రత్యుత్తరం
  • 2 ఈ సమస్యలు కలిగి ఉన్నాయి
  • 7 వీక్షణలు
  • చివరి సమాధానమిచ్చినది Svetlana

more options

I keep receiving the warning that I need to upgrade to 4.0.1. I have done so 3 times already. Why is it not working?

I keep receiving the warning that I need to upgrade to 4.0.1. I have done so 3 times already. Why is it not working?

ప్రత్యుత్తరాలన్నీ (1)

more options
  1. Exit Firefox (File>Quit) and check that no firefox.exe processes are running in task manager (ctrl+alt+del, processes tab). Try starting Firefox again and checking for the issue.
  2. If that doesn't work, please try to do a manual install. installing firefox