How? It is certainly not possible by default. You can set the right click search to be any particular one in the preferences but you can't, as far as I know, g

How? It is certainly not possible by default. You can set the right click search to be any particular one in the preferences but you can't, as far as I know, get a list so that you can search any particular text from any available search engine, which is what Right Click Search does. I did a quick search for "search" in about:config and didn't see anything that looked related.