Firefox often crashes right after I use Google Docs statistics function (Ctrl-Shift-C) on a text document and then try to close statictics dialog with Enter or mouse click. Seems to happen much more often if the document is large.
This problem persists with all recent versions of Firefox, but only on Linux. Windows versions not affected. Sometimes Firefox crashes outright, sometimes just stops responding with high processor load, and sometimes it also shows empty dialog window with OK and Cancel buttons.
Resetting Firefox, disabling add-ons and so on have no effect on crashes.