Roxas is right; stock Chrome is very, very good and for me it completely outdoes Firefox, even without any add-ons. I personalised mine a bit by adding a skin and I installed an add-on called 'Stylish', which basically allows you to decorate the various websites you visit. I use mine to dress up my tumblr dashboard. Other than that, I just have my bookmarks stored in ordered folders under my address bar so that things are easier to get to. I also have avast! WebRep in the corner, but that's because I use avast! as an anti-virus service.