Collections is an essentially an awesome way of grouping a bunch of add-ons for Firefox. You can then subscribe to these “Collections” and manage them using the “Add-on Collector” add-on for Firefox.

You can make your own collection or select one that’s already made filled with the add-ons of the author’s choice.

This is going to make installing all those add-ons on a fresh copy of Firefox just that much easier. You can use this for your own personal installation(s) of Firefox, but think also of the Sys Admins here, they can make a collection of default add-ons that they want all users in the organisation to have installed – handy, I think so.

At the moment you need a Mozilla account (you can register for free) to create collections and subscribe to them, you do not need an account to browse through the publicly available collections and download the add-ons within.

Naturally I couldn’t resist and I made a collection of Web Dev add-ons that I frequently use.

via Advanced docking using jQuery.

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p>I wouldn’t mind using something like this on a website sometime. On the right site, this could be an invaluable tool.

via jQuery Highlight Plugin | bartaz @ GitHub.