Switched from FF to Chrome not too long ago, shortly after they introduced the Chrome App Store. I know it's just glorified Weblinks, but they make handling those links a lot easier, and I like the paradigm. Also, once I started using Chrome more frequently, FF's startup speed started to annoy me - it is still very much bloated, and takes up way too much memory for what it does. On older systems, it visibly drags down performance, while Chrome does not seem to affect it at all.