The Pros outweigh the Cons when it comes to Mozilla Firefox.  While it packs many features, the lack of flash may turn off some users.  It has a nice minimalist interface that is definitely more useful than the stock browser experience. Gestures, like swiping to the right, reveals a vertical panel with all the open tabs, allowing you to open and close tabs in a blink of an eye.  If you swipe to the left you are presented with a different panel of options that allow you to go forward or back, favorite a page, or change the settings.  Using a mobile web browser has never been more intuitive. Check out the video for more