No, it does not. I've been casually following the development of GCLI (formerly known as "Cockpit") for a while now. It started as a debugging component of the Ace editor.

In some respects, it goes farther back than that. IIRC, Bespin had a command line in early 2009 when I started working on it.

I've had so much hope in Ubiquity; let's hope this will get a nicer model for writing extensions and a "package" manager (I'd love something like Sublime2 has).

Ubiquity continued development recently

https://addons.mozilla.org/en-US/firefox/addon/mozilla-labs-...

I don't think so. Only major thing I see is the homepage URL changed to https://wiki.mozilla.org/Labs/Ubiquity

At least it was updated to work with FF 13+.

  Version 0.6.2
  Released July 19, 2012 1.0 MB
  Works with Firefox 13.0 and later

Firefox already has a package manager, doesn't it? You pick up the "packages" here: http://addons.mozilla.org/

Firefox has a package manager, but Ubiquity didn't. Instead you embedded some meta tags in your webpage pointing out the Ubiquity extensions and following that page you'd get an installation.

There wasn't a central repository for Ubiquity.