Well "there's your problem" then. The weird thing is that Firefox 3.6 should support SNI, however I can't find information if it should also do so on Windows 2000.
I suspect either two things are happening: Firefox on Windows 2000 relies (too much) on Windows 2000 networking (SNI wasn't supported until Vista, this is also why IE on 2K/XP won't work either) or there some kind of outdated proxy running (firewall maybe?) that is blocking SNI.
But from what I gather on XP the latest versions of Firefox and Chrome are apparently able to bypass Windows networking and support SNI anyway, so it's a bit odd it's not working on W2K.
There is also the thing that everything (Firefox 3.6 and Windows 2000) is horribly outdated and no longer supported by Mozilla and Microsoft (see here). If upgrading to at least Windows 7 isn't an option, maybe dual boot or replace with Linux? That way you can at least run the latest browser and not be viable to viruses or malware.
I suspect either two things are happening: Firefox on Windows 2000 relies (too much) on Windows 2000 networking (SNI wasn't supported until Vista, this is also why IE on 2K/XP won't work either) or there some kind of outdated proxy running (firewall maybe?) that is blocking SNI.
But from what I gather on XP the latest versions of Firefox and Chrome are apparently able to bypass Windows networking and support SNI anyway, so it's a bit odd it's not working on W2K.
There is also the thing that everything (Firefox 3.6 and Windows 2000) is horribly outdated and no longer supported by Mozilla and Microsoft (see here). If upgrading to at least Windows 7 isn't an option, maybe dual boot or replace with Linux? That way you can at least run the latest browser and not be viable to viruses or malware.