Firefox sometimes freezes for a few seconds when deleting a tab with mouse middle-click to the tab title. Tab does not disappear and also changing tab is impossible. After a few seconds Firefox wakes and finally deletes the tab. But it also performs other mouse actions as if the deletion would have been done immediately: e.g. if I have re-clicked the tab trying to delete it again, Firefox actually also deletes the next tab (like it would have been on the place of the deleted tab when I made the second click). It almost sounds like Firefox pauses in screen update, but performs the actions in background.
Sounds familiar to anybody?
This has happened a few times in the last 1-2 weeks, not very often, but every now and then.
