I use ddg but don't use bangs. Instead I have 'map' and 'wiki' set up as keyword searches in Firefox. Then all I have to type is 'map London' to search Google

I use ddg but don't use bangs. Instead I have 'map' and 'wiki' set up as keyword searches in Firefox. Then all I have to type is 'map London' to search Google Maps for London. Just right click in a search box and you will see an 'Add a keyword for this search' option.