Why not use a feed reader which is designed and optimized for that task? I like Newsblur.com (aka https://github.com/samuelclay/NewsBlur) but there are tons of great desktop apps which do a much better job than Firefox ever did.
Another vote for newsblur. I plan to self-host, but until I do, Sam hosts it for me. (... and I'll keep playing for premium even when I do self host, because shiloh needs to eat too :)
