Esp when u r behind proxy u get this issue... You get invalid security certificate when connecting over through https. We say permanently add the certificate but it works only till the system is restarted. Huh! i was smoked out from using firefox just for this bug. I tried .. tried.. tried .. but no luck .. finally today i got a plugin which promises to permanently (i.e.e.. for ever) white list the url. I tried white listing.. but yet to check if it works on restart of the system. THe plugin is: Perspectives Let me know if it works for u as well.
Now i m back to firefox again..
This fellow doesnt work.. as he says on the site.. swithcing back to chrome..