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

Gmail "Unable to connect"

  • 1 reply
  • 1 has this problem
  • 11 views
  • Last reply by FredMcD

more options

For several weeks now, my ability to access my Gmail accounts on Firefox has been spotty. Sometimes it works, but sometimes it doesn't. It'll go from working just fine, to saying it's offline and telling me it's "Unable to connect." No other sites — even other Google sites, like Drive or Sheets — do this, just Gmail. And I'm able to access it just fine in Safari and Chrome. Help?

For several weeks now, my ability to access my Gmail accounts on Firefox has been spotty. Sometimes it works, but sometimes it doesn't. It'll go from working just fine, to saying it's offline and telling me it's "Unable to connect." No other sites — even other Google sites, like Drive or Sheets — do this, just Gmail. And I'm able to access it just fine in Safari and Chrome. Help?

All Replies (1)

more options

There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.

https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites

What do the security warning codes mean