https://xxcancel.com is up and redirecting to working Nitter instances.

There's a more general list available here: https://codeberg.org/mv12star/shitter/wiki/Instances

I put this together this morning:

https://github.com/gavinhungry/nitter-bitter

You can self-host it anywhere, and use the aforementioned Redirector [1] extension:

    ^https://(?:twitter|x)\.com/(.*)
    https://nitter.example.tld/$1
[1] https://einaregilsson.com/redirector/

Also twiiit.com

Is there a way to make Firefox autoredirect to that?

https://einaregilsson.com/redirector/

Include pattern:

  ^https?://x.com/(.*)
Redirect to:

  https://xxcancel.com/$1

Libredirect does exactly that: https://github.com/libredirect/browser_extension

uBlock Origin can do it, no need for something else

https://github.com/uBlockOrigin/uBlock-issues/discussions/26...

Probably with some userscript?