"YouTube is currently A/B testing a different layout that will cause the buttons of my extension not to appear. If you experience this, you should be able to enter livestreams theater mode through the shortcut ('t' by default)." from author's X/twitter

I love this add-on. It enables you to watch livestream on the center of the screen instead of the left side because of the chat on the right side. And you can place the chat anywhere but you need to do it on the settings instead of just doing it on youtube screen.

A few months ago, there were a lot of problem with it not appearing at all. But it got more stable because youtube wasn't updating its interface anymore. Which I thought is the source of the problem and not the add-on itself.

Works as intended albeit with some fiddling if used with other extensions. Can the devs PLEASE make this livechat view work is full screen mode? I would give it a 5 star if that can be done!

The best YouTube livestream chat extension there is. Very simple to use and has fantastic options to customize with.

Developer also updates as soon as YouTube does some tomfoolery which is greatly appreciated.

However a suggestion I may add is having the live chat be able to shift to the bottom of the video player when the browser window is cascaded to the side when there's two windows, similar to how FrankerFaceZ allows that option, because I tend to watch and do stuff on the side and also the YouTube stream does hard crash the browser tab when I cascade, requiring me to sometimes disable the extension in the video player.

Good addon but theater mode randomly stops working every few weeks and have to remove and re-add it.

Video no longer showing in theater mode as of 22 august update.

There should be a setting to disable the overlay on the video because I end up moving mouse and clicking on the links on overlay as I am watching video. Very disruptive. Love the theater mode though.

The Chat Box is slightly to big and I can't seem to fix it in the settings so now 1 chat line (the most bottom one) is either missing or incomplete. Other then that great add-on!

thx!! when I use this I just realized youtube can be pop up the chat and checking the participant too😅
but I still love this, it's help me when I want the video screen to be big and I don't wanna scroll down just for chatting and I glad firefox can support the fullscreen...
Edit2.0: I delete the last because I realized that this thing have option, thx for making it!

I have been looking for an addon like this for so long! Only things I would change is it would be nice to have a toggle to switch to dark mode only while in theater mode. Would also be nice if it was open source. Other than that, perfect!