Firefox 4 beta 2 adds app tabs, Mac tabs on top

Mozilla on Tuesday posted its second beta of Firefox 4. The update brings in a new App Tabs feature that turns tabs into permanent features. Much like Chrome, it collapses the tab to an icon but makes it always available on the left to jump to a favorite page, such as a blogging tool or Internet radio. Mac users now see tabs on top by default where they were strictly optional in the first beta....

Source : http://www.electronista.com/articles/10/07/27/fire...