Not that this is even worth battling over, since it's whatever floats your boat, but it should be noted that Read It Later's online version works in all browser

Not that this is even worth battling over, since it's whatever floats your boat, but it should be noted that Read It Later's online version works in all browsers (including Safari) and it has bookmarklets for those as well. That's why I like Read It Later, it has the same features as the other services (Instapaper, Laterloop) but it's Firefox extension has a lot of awesome features for when you are in Firefox.