From what I've gathered, it already has, though fair warning if you use YouTube Enhancer, it breaks the bypass so you have to disable the adblocking within Enhancer (as this one person on the uBO subreddit learned).
Also just a fair warning, it should be obvious at this point but it's almost certainly not going to work on chrome because it's Google's browser.
In general, seems theyve been enabling this on chrome first, and firefox is fine with it ( for now )
Friend had this on chrome, moved to firefox and it all just worked ( for now ).