Andyed has released a new version of Mouse Gestures that works with both Mozilla and Firebird 0.6. This new version sports some serious customization UI (also noted and screenshotted over at Simon Willison's Weblog). Good stuff!
update:Andyed says in comments here "Credit where credit is due... Jens Bannmann is almost entirely responsible for recent mozgest developments and the customization feature is his design." Great work Jens. This is nice stuff and very well done.
