fix up firefox to be more declarative

flake.lock

@@ -31,11 +31,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1657514455,
-        "narHash": "sha256-rYrofeCRgZyiZMuuwbwbM7ZLNTj04S0l4G/1ZeH0gqI=",
+        "lastModified": 1663665682,
+        "narHash": "sha256-YB+vmQB3N9RyeshHAO4GjIFebA7NPY2jlkdvGGZtM64=",
         "ref": "main",
-        "rev": "50f7ee786d9704ecfd67a9fe2eb8f338fc983dc1",
-        "revCount": 64,
+        "rev": "36bda6965ab2e1a206f8c2b7a74f3b022c873662",
+        "revCount": 65,
         "type": "git",
         "url": "ssh://gitea@git.sealight.xyz/aynish/basant"
       },
@@ -663,33 +663,19 @@
         "type": "github"
       }
     },
-    "nixpkgs_5": {
-      "locked": {
-        "lastModified": 1663489134,
-        "narHash": "sha256-YqM45LLzvgBNbvIK0QQa8cY8omKS0+bRUg4JWzEj14w=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "830e228898ac7a66eeafb169dd3df0dc427674d4",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nur": {
       "locked": {
-        "lastModified": 1663393873,
-        "narHash": "sha256-DtumXhmyA9gpu0+qa5fwvU93qKqtx0AtUFvfazPzz1Y=",
+        "lastModified": 1663680695,
+        "narHash": "sha256-sVdmg21MzIS0e+mCyIEInivIodJNYKVicZ3WJr907XI=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "ecf7442437f53f0f689df6897c10a7f9a4f6b9ae",
+        "rev": "a22f443201174496ce6edb237a2e9596591cd542",
         "type": "github"
       },
       "original": {
-        "id": "nur",
-        "type": "indirect"
+        "owner": "nix-community",
+        "repo": "NUR",
+        "type": "github"
       }
     },
     "nvfetcher": {
@@ -885,7 +871,10 @@
     },
     "vimwiki-cli": {
       "inputs": {
-        "nixpkgs": "nixpkgs_5"
+        "nixpkgs": [
+          "poonam",
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1662448409,