Update: This feature was discontinued in Firefox 45 (March 8, 2016). There are some add-ons that offer somewhat similar functionality.
If you use a lot of tabs or if you do a lot of stuff at the same time, sooner or later you'll feel that the tab bar is not big enough. Luckily, Firefox has a great way to organize your open tabs called Tab Groups (also known as Panorama). We've made a video tutorial to teach you all you need to know about it.
This is our first tutorial. We're hoping to do a lot of these in the future. Leave a comment bellow to tell us if you liked it and what you'd like to see in the future.