I'm a big Mozilla fan (as they're the only one of the big players still with a genuine, open view of the web) and am still clinging to the humble little fox as my browser of choice. So when new Moz things appear I get all excited - here are my latest five..
Thumbnail illustration by Scott Hill
Command Line Interface
Take a look at this command line interface for browser manipulation, coming soon to Firefox.
How about an iPad browser which genuinely tries to improve the tablet browsing experience? (Live demo in the video at the bottom of the article.)
This is great; a beginners' playground for learning HTML, CSS and JS that allows you to publish live when you're done.
Boot to Gecko
Download Firefox Nightly to try out some of the coming features, such as developer tools with its Layout view and Responsive mode.
There's some really interesting stuff happening over in Mozilla land. I'm staying put.