Would be nice if there's an automatic way to have a link revert to the Wayback Machine once the original link stops working. I can't think of an easy way to do that, though.
http://blog.archive.org/2020/02/25/brave-browser-and-the-way...
https://addons.mozilla.org/ro/firefox/addon/wayback-machine_...
javascript:void(window.open('https://web.archive.org/web/*/'+location.href.replace(/\/$/,%20'')));
(which is only slightly less convenient than what others have already pointed out — the FF extension and Brave built-in feature).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")
E.g. https://addons.mozilla.org/firefox/addon/wayback-machine_new...