MrSeb writes "Mozilla has officially released Firefox 13. Unlike Firefox 12 (or 11, or 10, or indeed many of the recent Firefox versions), Firefox 13 is an important release with a handful of much-needed features that are long overdue. There's a new New Tab Page launcher, with your favorite and most-used websites, and a new default home page with one-click access to Bookmarks, Settings, Add-ons, etc. SPDY is on by default, too, which should help ameliorate the perceived speed difference between Chrome and Firefox. Finally, the developer tools (Page Inspector, Style Inspector, etc.) have been tweaked and updated!"