I use it mostly to redirect Youtube and Reddit, and works really well, congratulations!
The choice of search engines you made for redirection (Searx, Mojeek, among others) is very thoughtful and inclusive, I appreciate that

Seems to be working now except for search. When doing a search i receive no results.

It does its job well. The only thing I would suggest: find a way to filter out invidious instances that are down or broken. I know that is difficult, but I think this add-on randomly redirects to any instance without checking first. Keep the randomness, add a filter list of good instances.

Rien à dire, une excellente extension.