1180744 - Erroneous coordinates for mousemove event in Google Maps unfer Firefox v39

Status: RESOLVED DUPLICATE of bug 1175863

(Firefox :: Untriaged, defect)

Description

[tangent.software]

User Agent: Mozilla/5.0 (Windows NT 6.0; rv:39.0) Gecko/20100101 Firefox/39.0
Build ID: 20150630154324

Steps to reproduce:

When using javascript code as follows (Google Maps v3):

google.maps.event.addListener(map, 'mousemove', function(e){
  e.latLng.lat();  //wrong!
  e.latLng.lng();  //wrong!
});




Actual results:

The coordinates returned are always to the south and slightly to the east
of where the cursor actually is.




Expected results:

The correct coordinates should be contained in the event function parameter.
Worked fine under Firefox v38.

Comment 1

[tangent.software]

This has also been reported by someone else in stackoverflow here:
http://stackoverflow.com/questions/30651839/google-map-mouseevent-in-firefox-shows-incorrect-coordinates

Comment 2

[Bill Chadwick]

This needs a very rapid fix. I have had folk reporting my web site is broken only to find the fault is with Firefox 39.0 . How on earth can such a blatant fault be created and not detected before release ?

Comment 3

[Marc Beuret]

Hello, I confirm the bug and I join Bill Chadwick on the need of a very rapid fix.

Comment 5

[Ed]

How do I downgrade to Firefox 38? I need to use Google maps NOW, and the bug is not even assigned to anyone. 

Ones again: Never change a working system!

Comment 6

[Marc Beuret]

Hi Ed, as adviced at https://bugzilla.mozilla.org/show_bug.cgi?id=1175863, you need to change Google script url. Regards.

Comment 7

[Ed]

Huh! I am not using google maps directly (because of handicapped UI of new maps), but via http://www.gokml.net/maps#ll=47.624197,9.402618&z=7&t=r instead. And there are many sites that are using google API, e.g. booking.com, etc...

How should one fix it then? In general, the problem is not on user side, so not the user should fix it. Oh boy.