Most users have no time to browse through thousands of resources, read (often obscure) forums, and search for best tools to accomplish a certain task. That's why here at Mashable we've long held the belief that collections of various online resources are real time-savers for our readers.

The folks at Firefox seem to be on the same page, and thus they introduced a new feature: Firefox Add-on collections. Let's say you want to interact with the various social networks directly from Firefox. You can try out the different plugins one by one, but now you can also install an entire Firefox collection of add-ons called the Social Circuit, which contains 16 social add-ons.

New collections can be created by anyone and shared with their friends; you can browse them on the Collection Directory, and you're currently able to filter them by popularity, or you can browse through the Editor's picks.

To create your own collection you must register on Firefox's site; after that, creating a collection is quite easy: choose a name, and pick which add-ons you want to be in your collection.

Collections go hand in hand with the Add-on Collector, a special extension which turns your favorite collections into subscriptions. It'll notify you when new add-ons are published to one of your collections, and it also allows you to share add-ons with friends, publish add-ons to your collection, and set up a collection to be automatically updated in your Firefox.

Check out a video introduction to add-on collections below.