From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.0+) Gecko/20020428 BuildID: 2002042808 I think that the Build ID should be included in the name of the desktop icon. This would be really useful when Mozilla won't even start, right now there's no fast way of finding out which build you're using (or trying to use) without starting Mozilla.
-> rfe, installer
the build id is just a subversion. Users shouldn't see the subversion.