With DDG + firefox (desktop or mobile), you can create your own custom bangs! 1. Perform the modified search (hekksaks r:no) 2. Create a new bookmark from the

With DDG + firefox (desktop or mobile), you can create your own custom bangs! 1. Perform the modified search (hekksaks r:no) 2. Create a new bookmark from the search result page 3. Ctrl+shift+B -> edit bookmark 4. Replace the search term but not the custom logic with `%s` (in this case produces https://duckduckgo.com/?q=%s+r%3Ano&ia=web https://duckduckgo.com/?q=%s+r%3Ano&ia=web) 5. Type your desired bang into the "keyword" field (!n for example) You can now use !n <any search term> to search for r:no <any search term>, and add/remove/edit filters from the bang as you see fit.