OMG, tab groups are back in town. Hey, listen. Really. You are doing Firefox great. Thanks a lot! :'D

Ay, dios, tab groups ha vuelto. Ey, escucha. En serio. Estás haciendo Firefox grande. Gracias de corazón.

Doing perfectly its job! Thumbs up @projectdelphai!

Useful, intuitive and stable ! Keep up the good work !

really love it. enjoy drag and drop.

Has honestly revolutionized the way I surf the web! Thank you!

Definitely the best implementation of tab groups I've found so far for Firefox 59+! I haven't run into any bugs yet. It's only missing a few nice-to-haves, like smart placement of new groups.