I'm using Firefox 10.0.1 with no add-ons or extensions. A few months ago (possibly with a Firefox update?) the markers (the upside down teardrop shaped ones) stopped appearing in Google Maps. I can see that the image "tries" to load there (I see a little square, possibly with the "broken image" icon, flash where it should be), but the markers don't load. I can see the bubble, but no marker.
I've attached an image where you can see the bubble but no marker.
This makes viewing multiple locations on the same map basically useless. Unfortunately I can't test other browsers since this is all I can use at work.
Why aren't these markers showing up and what can I do to fix it?
Best Answer
There is a known bug with loading the marker images when you are behind a proxy - I suffer from the same problem. There is a thread on the issue on the Mozilla support pages here, something to do with Firefox not sending the proxy authentication information with the request. There is a Bugzilla issue open for it (now marked a duplicate of another issue) - it alleges that the issue should be fixed in Firefox version 13 (I can't install it to test unfortunately).
Alternatively, Galious in the Mozilla support forum suggests using the Proxy Authentication add-on to solve the problem in the mean time.