Outlook.com has started serving me the mobile site whenever I browse to it in Firefox on my college's computers I have no idea why and there's no way to make it go to the full version (I've never observed this behaviour on any other site )
Also interesting to note that the favicon is wrong, I wonder if that's related. This issue is being a pain to diagnose though - we have two networks on our campus, the antiquated one in the screenshot above where the issue is present in both FF 3.5.3 and IE 6 SP1 (running on Win Server 2K SP4) and (iirc) it was occurring in a newer version of FF (possibly 4) but not IE (either version 7 or 8, I'm not sure off hand) on XP Pro SP3 on the other network. It doesn't occur at all on the non-centrally-managed PCs in the offices. Any suggestions gratefully received.
EDIT: Have reported via Outlook.com's feedback form.