Mozilla’s popular browser Firfox has now entered into it’s 10th version. To download Firefox 10, you simply have to hit the update button on your Firefox browser or head to the Mozilla downloads page.
The latest version of the browser doesn't appear to be much different from its predecessor which was released a little bit over a month ago. Firefox 10 offers an automatically hidden "forward" button, better add-on management and compatibility, some stability fixes, and tweaks which will make life easier for developers in particular.
Firefox has now been releasing updates quickly following the model adopted by Google Chrome. So you should expect the next update in no more than 6 months from now.