I am debating this notion of all browsers. There is Chrome, there is Firefox, there is IE and there is Safari.
Chrome is a marketplace, so they'll be there selling you products (and yourself to the products) as long as they can.
Microsoft doesn't want you to use XP anymore, so they are not providing you updates. Safari for Windows is pretty much the same story now. Which practically leaves Firefox and Opera. Two choices.
I am arguing for more credible and substantive choices. I have not used Opera substantively but Firefox to me seems stuck in the past. If I were to add further thoughts, I see that the basic use and function of browser has remained the same for very long time. Just look at the bookmarks manager. Have you seen any browser provide native innovation to their bookmarks manager? The last upgrade in Firefox was several years ago when they introduced Live Bookmarks, but things have gone quiet.
This is just one example of basic functions of everyday use of browser. Has anyone seen any innovation in browser functionality in a long time? It used to render HTML websites in the beginning, and it is still rendering websites (so what if the websites have evolved - the browser has practically not evolved for the daily usage of average users).
I use XP exclusively too, I only fireup vmware to test IE9/10