Is there a way to black a certain path on any website using a policies.json?

 "policies": {
     "WebsiteFilter": {
         "Block": [
           "*://youtube.com/*",
           "*://www.youtube.com/*"
         ]
     }
 }

I have a "policies.json" file set up and I am able to block certain websites on Firefox. For example, mine is set up something like this: { "policies": { "WebsiteFilter": { "Block": [ "*://youtube.com/*", "*://www.youtube.com/*" ] } } } My question is can I block any website that has a certain path or keyword in the url? I know that a few of the match patterns from https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Match_patterns are: https://*/path/ https://*/path https://mozilla.org/a/b/c/ But I'm not quite sure how to set them up (such as the formatting in the .json file) and/or what exactly they block. For example, if I wanted to block any website with a "path" = "Giraffe", would it block websites such as "exampleforum .com/giraffe/"?