I can confirm this with the "MinimizeToTray Revived" add-on as well. One workaround I found for this is to use HUD to access menu items. Tap "Alt" once and then enter a few characters...it works well.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775080 Title: Thunderbird with Firetray/MinimizeToTray - Global menu disappears To manage notifications about this bug go to: https://bugs.launchpad.net/globalmenu-extension/+bug/775080/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs