Hello I have a small niche non critical issue with setting my own search engine in the FF mobile app. Looks like it's doing a test to see if the URL is reachable, but gets rejected because of authentication. It did not prompt for credentials, just immediately fails which prevented me from setting it.. Now I am self hosting a SearXNG search engine behind a reverse proxy (Nginx) with basic HTTP authentication, so I do have the power to disable it for a minute just to set the engine correctly and re-enabling it again.. After that, when trying to search for something after a session ends, it did prompt me for credentials and worked pretty well after that! So see, this is very niche, but do prevented me from setting my own engine. It will be a show stopper for those who want to use such engine (with any authentication) but do not self host it... Thanks a bunch Roy