At least on the desktop, you don’t need an extension to define custom search engines. E.g. for Chrome: https://superuser.com/a/1828601 https://superuser.com/a/

At least on the desktop, you don’t need an extension to define custom search engines. E.g. for Chrome: https://superuser.com/a/1828601 https://superuser.com/a/1828601 In that case, use the udm=14 query parameter instead of adding to the search term.