Early-on I dismissed Brave because I really didn't like the idea of earning crypto to watch ads. However, I didn't see that this was something to opt-into and the exhaustive list of patches they've applied to provide better privacy than Firefox. I would switch, but there are 2 things preventing me from doing so: no good vertical tab extension in Chrome-based browsers, and I HEAVILY make use of container tabs in Firefox. It's too powerful to maintain several sessions to the same site in separate containers. Also I have 300 tabs open. This works for me. This is Web 3.0.
Brave are actually building vertical tabs to be available OOTB as we speak, much in the same vein as Edge. Just install Nightly and turn on a flag to see the WIP version.
I have to use Edge at work. If those vertical tabs are coming, I'd certainly welcome it. I wish I could get vertical tabs that are actually drawn like a tree though: Like with the box drawing characters and indentation.
The best feature in Firefox is container tabs - and there are a ton of uses outside of first party isolation. Chrome-based browsers need that.
Tab outliner is, imo, even better than FF's TST because outliner can also work as a persistent session/bookmark manager. It is really important to someone like me who doesn't like seeing a hundred tabs and yet want to keep them in tree. Outliner gives you the ability to close a tab without removing it from the tree so you can re-open it later. Some people use bookmarks for it, but to me this is a much more light weight and saner way of doing session management (essentially "temporary" bookmarks, if you will)
