I've gone ahead and forwarded this upstream as an X bug, however really some additional analysis ought to be done. I don't think there's enough info on the upstream bug for us to be able to expect a response, but who knows, worth a shot I guess.
It would be helpful to narrow this to a test code that reproduces the problem. *Maybe* since firefox is so widely available they'll look at it, but most typically with these kinds of bugs upstream wants to see a concise test case. It is also almost always a good idea to run the client app using xtrace in order to study the client-server interaction and see exactly what sequence of commands the client is sending to the server. Especially in this case I think it's extraordinarily likely upstream is going to ask for this to be done. ** Also affects: libx11 (Ubuntu) Importance: Undecided Status: New ** Bug watch added: freedesktop.org Bugzilla #23416 https://bugs.freedesktop.org/show_bug.cgi?id=23416 ** Also affects: xorg-server via https://bugs.freedesktop.org/show_bug.cgi?id=23416 Importance: Unknown Status: Unknown ** Changed in: libx11 (Ubuntu) Importance: Undecided => High ** Changed in: libx11 (Ubuntu) Status: New => Incomplete -- [MASTER] Gdk-ERROR **: The program 'firefox-3.5' received an X Window System error (BadWindow) https://bugs.launchpad.net/bugs/401055 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp