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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

problem following upgrade to big sur

  • 1 baphendule
  • 1 inale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu FredMcD

more options

I recently upgraded my iMac operating system from Mohave to Big Sur and now find I am unable to login to Facebook using FireFox. I can access it via Safari but FireFox is my preferred browser.

I recently upgraded my iMac operating system from Mohave to Big Sur and now find I am unable to login to Facebook using FireFox. I can access it via Safari but FireFox is my preferred browser.

All Replies (1)

more options

Please explain the problem in detail. What happens? What is/are the exact error message(s) ?


Make sure you are not blocking content.

https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/

https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection


Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.