A few more bits of info from Laura Thompson's presentation, that was mentioned: shipping features can be done even faster if they are done in a modular way, as

A few more bits of info from Laura Thompson's presentation, that was mentioned: shipping features can be done even faster if they are done in a modular way, as addons. Firefox supports restartless addons, which means the browser could download an addon and enable it immediately. Together with work on improving addon APIs (APIs for CSS features were discussed, for example) this could be very interesting.