I just got Firefox 14 and I'm noticing one annoyance (bug?): If you visit a website, for example: http://www.facebook.com (let the site load). Then type a new website in the address bar, example: http://www.twitter.com Then hit enter, the URL in the address changes back to facebook.com while twitter.com is loading. I find this pretty annoying because you don't really know if it "took" your new address and if it is actually loading the new address.