When JavaScript Stops Working Because of an Extension: What Detection Reveals and How to Fix It Fast

https://wiki-fusion.win/index.php/Why_your_JavaScript_runs_on_twitter.com_but_breaks_on_x.com_(and_what_to_do_about_it)

You're browsing, a page looks wrong, buttons do nothing, and you blame the site. The real culprit is often an extension or a strict browser setting that quietly blocks JavaScript