> Downside is that you need to enable the separate search bar to get the option to add a site’s OpenSearch provider when visiting it because the small looking glass gets a tiny plus you need to click.
Nope, you can just right-click the site's own search bar, which is how I've been doing it forever.
I think that adds it as a bookmark which is not the same thing as an OpenSearch provider because it doesn’t give you the blue highlight when searching with it.
Actually this is exactly what lorenzhs said, and it is my experience too. I know this because I spent half an hour trying to get a “blue search” for BBFC.
Yup that’s what I meant. The right click -> add as search engine creates a bookmark which doesn’t get the blue highlight when using it. That distinction just doesn’t make sense to me.
Nope, you can just right-click the site's own search bar, which is how I've been doing it forever.