Firefox has had these capabilities for years. AdBlock Plus for FF (14 million users+) - https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/ Firefox Sync (Firefox Sync is a service that lets you synchronize your bookmarks, history, passwords, add-ons and open tabs with another copy of Firefox ) - http://support.mozilla.org/en-US/kb/what-firefox-sync Firebox also has another great add-on for those concerned with privacy that Chrome doesn't offer called Better Privacy... which clears tracking cookies (LSO/Flash cookies). I've tried moving to Chrome on at least two occasions. I always end up back on Firefox. I just like the way it runs a bit better. Autofill never worked properly on Chrome for me, among a few other items. Plus, web developer tools like FireFTP and Firebug are invaluable to me in my line of work right now and I can't give those up... and Chrome didn't seem to have an equivalent. I do like Chrome though. Overall, it's a very nice, solid and snappy browser.