setup firefox search engines

modules/applications/firefox.nix

@@ -22,8 +22,48 @@ in
           id = 0;
           name = "profile_0";
           isDefault = true;
+          search = {
+            default = "ddg";
+            order = [
+              "ddg"
+              "google"
+            ];
+            engines = {
+              nix-packages = {
+                name = "Nix Packages";
+                urls = [
+                  {
+                    template = "https://search.nixos.org/packages";
+                    params = [
+                      {
+                        name = "type";
+                        value = "packages";
+                      }
+                      {
+                        name = "query";
+                        value = "{searchTerms}";
+                      }
+                    ];
+                  }
+                ];
+
+                icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+                definedAliases = [ "@np" ];
+              };
+
+              nixos-wiki = {
+                name = "NixOS Wiki";
+                urls = [ { template = "https://wiki.nixos.org/w/index.php?search={searchTerms}"; } ];
+                iconMapObj."16" = "https://wiki.nixos.org/favicon.ico";
+                definedAliases = [ "@nw" ];
+              };
+
+              bing.metaData.hidden = true;
+              google.metaData.alias = "@g";
+            };
+          };
           settings = {
-            # TODO: add firefox settings of choice
+
           };
         };
       };