Yea even i am using google analytics for my site http://www.bindaasbharat.com from the last 2 years, i am not having any problem, daily i am able to track my records...
I think there are problems with your provider. Yesterday I couldn't access google and alexa site for hours too.
dont know whts going wrong? now i try to create a new profile on twitter,, bt didn't get any response.
no mozila is slow initially but it offer a lot of plug ins ... to open google analytics, google chrome is better