It seems to be the same issue as upstream https://bugzilla.mozilla.org/show_bug.cgi?id=131131
** Bug watch added: Mozilla Bugzilla #131131 https://bugzilla.mozilla.org/show_bug.cgi?id=131131 ** Also affects: firefox (upstream) via https://bugzilla.mozilla.org/show_bug.cgi?id=131131 Importance: Unknown Status: Unknown ** Changed in: firefox (Ubuntu) Status: Needs Info => In Progress -- Title tooltips appear when browser window not in focus https://launchpad.net/bugs/54285 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs