Actually, today I installed the experimental add on called Maemo GeoLocation. It can be found on the web site of the Firefox addons, but not in the addons menu in the actual app. When it is activated, the positioning icon shows up in the status area of the phone. Works fine, so far.
They're maemo and MeeGo... "Meamo!" sounds like what Zorro would say to catherine zeta jones... after she slaps him for looking at her dirtily...