You can add a custom search in Firefox by right clicking on a search box, then clicking on "Add a keyword for this search". Then save a bookmark with a keyword

You can add a custom search in Firefox by right clicking on a search box, then clicking on "Add a keyword for this search". Then save a bookmark with a keyword, like "so" for stack overflow. Then you can enter this in the URL bar: so python reverse list ...and you'll get a search for "python reverse list". This is much less magical than how it works in Chrome, and harder to discover, but once you get it set up it is reasonably convenient.