There is an addon for Chrome called Searbar Addon. It has an option to click in the search bar on almost any site and add that search to the bar. Is there a way to add a site, NOT another search engine, to the search bar in Firefox? It's one of the few things keeping me from primarily using Firefox. I do see where there are times a green plus sign will appear for me to add a site such as this support forum, but is there a way to add other sites that don't offer that green plus sign?