cross-browser issues

[vareg]

since i registered i've been having this issue that everything works as expected on IE8 however i can't never login in my account using Firefox 11 up to the latest version. Credentials match what's in your DB but then it lingers while on the 'loggin you....' page.
Not a big deal but since IE is pain in the ass for me, i'd like to find a way to using this site on Firefox the same