I now daily drive firefox, there are unfortunately plently of broken sites. Nebula's video player is broken in widescreen for example.

Nope, literally used it last night. No problems.

Interesting. I also use Firefox and Nebula works fine for me. Do you have any extensions that may be causing that?

I keep firefox as a backup browser after more than 25y of on again off again use.

It simply does not work well on a lot of sites including government or bank websites. Wish it did.

But I'm wondering if you are doing something wrong. I just tried nebula in Firefox 151.0.3 and it works flawlessly. Full screen works, all buttons in the player work. I also tried it on Firefox for Android and it works.

Do you have any other websites that don't work?

Even on a blank profile.

A lot of web devs simply do not test on anything else, even for billion and trillion dollar companies, I've seen it first hand.

This includes a lot of state and federal government websites.

Note: I have said nothing about nebula, I don't even know what that is if it's not the network overlay.

https://nebula.defined.net/docs/