Steps to reproduce: 1) open two windows 2) in one, hit ctrl-s and leave the file dialog open 3) in the other window surf around a bit results: occasionally the browser will flip back the window with the dialog and display the slow script warning. The script error is in Script: chrome://global/content/bindings/general.xml:0 Be careful about hitting bug 470487. I've been able to reproduce this in a debug build with the code that is causing that crash commented out, so the warnings are unrelated to plugin issues. It's also reproducible in beta 4.

The fix for bug 493578 might be useful in fixing this bug, but it ended up being specific to the print dialogs.

See also bug 100180 which will fix the underlying issue. Shall we dupe or marking it as dependent?

Sorry I meant to point to bug 476541.

Aren't bug #476541. bug #482811 and this one the same? On bug #476541, if you change Component = General and Platform = All All, that should cover bug #482811 and bug #493578, IMHO.

In thunderbird (3.1a1), I can cause script timeout message with 20090313 build, but not 20090312 build. Someone could check the corresponding firefox builds. (In reply to comment #5) > Aren't bug #476541. bug #482811 and this one the same? The Mac hang issues certainly include script timeout, but they predate this regression.

(In reply to comment #6) > In thunderbird (3.1a1), I can cause script timeout message with 20090313 build, > but not 20090312 build. Someone could check the corresponding firefox builds. Not many checkins, but it includes a tracemonkey merge http://hg.mozilla.org/mozilla-central/pushloghtml?startdate=2009-03-12%2004:00:00&enddate=2009-03-13%2008:00:00 http://hg.mozilla.org/comm-central/pushloghtml?startdate=2009-03-12%2003:00:00&enddate=2009-03-13%2008:00:00