Hello! I have Firefox, version 78.15.0 installed on my mac OSX 10.11.6. A few days ago I lost the ability to use messenger in FaceBook. I cannot send or receive messages from others. When I click on messages, nothing happens. This happened suddenly. Otherwise, Firefox works as normal on my older mac. Can you give me a hint as to what is causing this? Greetings from Alf Steinar Grnvold, Norway. [email-removed] <i>(email address /phone number removed by moderator; please do not post personal information on a public website; [https://support.mozilla.org/en-US/kb/mozilla-support-rules-guidelines Forum rules and guidelines])</i>