Firefox tabs Options

[*mipadi*]

I've been looking at the tabs in Firefox, and other browsers like Safari, and while they are overall pretty cool, there's a lot of limitations with them. There's two major improvements I'd like to see:

1. Tabs should be re-arrangable.
2. You should be able to drag tabs off the bar to form a new window automatically, or drag tabs from other windows onto the tab bar to add them to that window.

These features are available with the tabs system in Mac OS X's Adium chat client (and by extension, the Colloquy IRC client, since it uses the same tab interface). Adium's tab code is open-sourced, and I'd really like to see developers implement this code into other pieces of software. Safari would be especially nice.