Pinned Tabs allow you to always keep your favorite web apps like Facebook, Gmail and Twitter open and just a click away. Pinned Tabs are small, can't be closed accidentally and open automatically when you start Firefox. This article goes over the features of Pinned Tabs and will show you how use them.
The internet is now full of websites that we use more like programs than just static pages. Popular sites like Facebook and Gmail are like this – they're used to accomplish tasks (or to avoid accomplishing tasks), they update themselves and notify you when they've changed. Pinned Tabs allow you to pin any website to the left side of the Tab Strip so that it's always available.
The easiest way to see how useful Pinned Tabs are is to make one.
Try it out: Try turning one of your favorite websites (email, internet radio, social networks) into a Pinned Tab. They're easy to create and super handy.
Turning a Pinned Tab back into a regular tab is simple.
Tab Groups (also known as Panorama) are a great way to organize and group your tabs. In the Tab Groups view, your Pinned Tabs are represented by their site's icon on the right side of each Tab Group.