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! 🎁

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

server not found message

  • 1 reply
  • 2 have this problem
  • 2 views
  • Last reply by cor-el

more options

after updating firefox server not found message comes up. i tried all the suggestions in the troubleshooting section for this error in addition i reinstalled firefox completely. internet explorer is still working

after updating firefox server not found message comes up. i tried all the suggestions in the troubleshooting section for this error in addition i reinstalled firefox completely. internet explorer is still working

All Replies (1)

more options

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See: