event.timeStamp - Firefox

This is regarding https://api.jquery.com/event.timeStamp/
According to the note : "Note: Due to a bug open since 2004, "
I just tested it and it is still not working as described (for Firefox)

I contacted mozilla and asked them if they could finally fix this.
https://bugzilla.mozilla.org/show_bug.cgi?id=238041#c37

The response i got back was "This bug is not about the current Event.timeStamp" Sounds like they are saying "it is working as designed"
So, is the jQuery code incorrect ? or the documentation incorrect ? or is the response incorrect and it is the bug ? It would be nice for this to work. If the Firefox response is incorrect, can you contact them and point out what the exact problem is, as i have not looked at the source code to know what specifically is the problem,
Thank you !
Oh and if it is correct and the documentation is not, then i already tried reporting that here :
https://github.com/jquery/jquery.org/issues/138

Start with the event.timeStamp documentation at api.jquery.com/event.timeStamp/ and compare its note with the Firefox behavior described in the issue. Read Mozilla Bug 238041#c37 and jquery.org issue 138 to determine whether the browser behavior or documentation is incorrect. Done means the responsible source is identified and the documentation or external bug report has a precise, supported resolution.