Working fine here on Firefox Nightly (currently at v. 120). Perhaps double-check BTH's options to make sure "Show editor window..." is properly set.
If that doesn't fix, please post (or contact me via the AMO page listed support email or support site) actual detailed steps to reproduce the problem and I would be glad to assist in troubleshooting.

If you're referring to changing the order of contextmenu options via css, no, that cannot be done in the extension itself. I do plan to test that userChrome.css code, and if confirmed working, to note this under Developer Comments on the add-on homepage.