Apparently, the problem still persists on some sites, like creating new folders on Google Drive. So I debugged the issue and finally found that this problem is created by the "Enable Right Click and Copy" plugin. That plugin seems anyway to be out of date so I removed it. Should get used to checking plugins before reporting a problem. Thx
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1789165 Title: Cannot select from web-context menus with mouse click, only with keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1789165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs