On June 5, 2012 Firefox 13 was released. There are several new features which are noticeable to users.
When you open a new tab, you’ll see the list of most frequently visited sites instead of blank page. So now Firefox has the new tab page that is similar to Internet Explorer 9. Such page in Opera — Speed Dial — has been one of the highlighted features for a long time. I can’t even remember when Speed Dial showed up in Opera for the first time.
Firefox combined the approaches of both browsers. In Opera, user is in control, they select which links are displayed in Speed Dial. In Internet Explorer the list of links is created automatically, it’s based on how often you visit different web sites.
It’s easy to pin a link in new tab page in Firefox. And such link will be side-by-side with automatically generated suggestions.
Starting with Firefox 13, background tabs are not loaded when you start the browser — only the active tab is loaded. As the result, Firefox starts much faster.
Pages in other tabs are loaded when the tab is activated. (Yes, you’ll have to wait… later.)
There’s additional benefit in this approach: Firefox uses less memory since only the viewed pages are loaded into memory.