You can make a "search engine" or bookmarklet that is a javascript/data URL that does whatever URL mangling you need. (Other than some minor escaping issues).

You can make a "search engine" or bookmarklet that is a javascript/data URL that does whatever URL mangling you need. (Other than some minor escaping issues). Something like the following should work. You can add more logic to supoort all of the sites with the same script or make one per site. javascript:document.location="%s".replace(/^https:\/\/www.youtube.com/, "https://invidious.site" https://invidious.site")