While Firefox 15 was just launched (29 August 2012), a beta for the next version has already been released.
The Firefox 16 beta features new additions and improvements on the current version.
The Developer Toolbar has been enhanced and relocated, so when it’s selected from the Web Developer menu, it jumps to the bottom of the screen.
The Developer Tools also feature full-keyboard controls.
The Android version of the Firefox 16 beta features a new reader mode, allowing adverts and image-heavy websites to be reshuffled, prioritising the text for users.