And just today, I had to fix a Firefox bug where the cursor in an editable document would be displayed in the wrong place. Note that this is purely visual -- it

And just today, I had to fix a Firefox bug where the cursor in an editable document would be displayed in the wrong place. Note that this is purely visual -- it acted as if it were in a different place than it showed. Good luck detecting that. So yes... there we go again: /Gecko/.test(navigator.userAgent)