FC21. If this question is off-topic for this list, please delete and ignore. I have 2 profiles on Firefox. They both have identical add-on's via firefox's drop-down menu Tools -> Add-ons on both profiles, add-ons have identical setup/configuration. On one profile, I can play youtube vids, no problem. On the other profile, youtube plays, but does not 'display' the video. The video screen remains black. I checked and rechecked the settings on both profiles and they are identical. So, what else should I look at to get to the bottom of this. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org