After months of delays, twelve betas, and two release candidates, Mozilla released Firefox 4 on march 22 for Windows XP, Vista, and 7, the Intel versions of Mac OS X 10.5 and 10.6, and Linux.
For starters, all users get a redesigned tabs-on-top interface that is being compared to Chrome but is actually more similar to recent Opera releases – in Windows, the tabs are all above the address bar, and a large button in the upper-left corner of the screen provides access to browser settings.
