Thank you for reporting this to Ubuntu. I get the right click -> back link grayed out and the back button only on the new tab that's open which is the expected behavior. When I switch back to one of the tabs with content, both options work again.
** Changed in: firefox (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/936684 Title: Opening new tab causes history to dissapear To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/936684/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs