Jack Spaar wrote: Looks like this bug:<http://bugzilla.mozilla.org/show_bug.cgi?id=209342> Yes, thanks. It appears to a bug that has popped up in firefox-0.8-1: I uninstalled 0.8-1 and re-installed 0.8-0 (both DAG rpms) and the window behavior is thankfully back the way it should be. Caveat apt-get updater.