Comment 69 for bug 109943

Merike, on what OS did you profile?

Note, from bug 781535 comment 24
(In reply to <email address hidden> from comment #22)
> Bug 658829 changed the way undetermined progress meters were painted on
> Windows from an XBL implementation to a native implementation. Linux still
> uses the XBL implementation for undetermined progress meters though.

The linux side is bug 854093 - Indeterminate progress bar takes entire CPU - in Widget: Gtk