Logged into my Gmail via Firefox and i saw that little orange logo in the bottom right of the screen. I don't use Firefox for feeds as i have FeedDeomon but i thought i would add it for good measure. Well, first off it didn't work, it needed authorising. But after a little tweaking the following worked:https://gmailusername:password@gmail.google.com/gmail/feed/atom/This is probably old, but for those out there like me, have fun.