User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9pre) Gecko/2008050703 Thunderbird/3.0a1pre In some warning messages, the title bar now says "[JavaScript Application]". This seems to imply that the warning message is not from Thunderbird. Reproducible: Always Steps to Reproduce: For an example: 1. Choose: File - New - Account... 2. Press the Next button twice. In Thunderbird 2 the title was "Alert", which was harmless. Arguably, Thunderbird's code should always use the prompt service and never call window.alert at all. See also bug 171129 (though that was for code in content pages).

Thanks to our tangled web of shared and forked code, not actually a duplicate: I fixed the ones in mail/ that only affected Tbird, but account manager/wizard is shared, as are several other things that window.alert(). Of course, thanks to our tangled web of products and components, there's no place to put a bug for shared frontend code, but account manager's the biggest offender, so I'll blame it for everything :) And there's no arguably should use the prompt service about it: window.alert() doesn't offer any API to set a different title, because you aren't supposed to be using it.

Make the bad things go away.

Comment on attachment 342030 [details] [diff] [review] Fix v.1 > var promptService = >- Components.classes["@mozilla.org/embedcomp/prompt-service;1"]. >- getService(Components.interfaces.nsIPromptService); Had it not been for this existing example I would have suggested the omission of the temporary variable. >+ promptService.alert(window, null, However I do suggest the omission of the trailing space ;-)