Comment 1 for bug 222686

is this still a problem with the latest ffox 3? also try a build from mozilla.com to verify that this is not ubuntu specific.

If its not ubuntu specific, this is best dealt upstream as its not a ubuntu specific issue. first, verify that this is not caused by some extensions (disable all in tools -> addons and restart). Then please search in http://bugzilla.mozilla.org to ensure that your bug isn't filed; then open a bug in http://bugzilla.mozilla.org and post your bug id (or the one you found matching your issue) here. Thanks!