Examine source code of A Site Specific Script Blocker

{
  "manifest_version": 2,
  "name": "A Site Specific Script Blocker",
  "version": "1.6",
  "description": "Want to block Google scripts on everything other than Google and Youtube? Now you can. Android compatible. No telemetry.",
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage",
    "tabs",
    "unlimitedStorage",
    "webNavigation",
    "dns"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ScriptBlocker@OpenAddons.null",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "A Site Specific Script Blocker",
    "default_icon": "icons/icon.svg"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "interceptor.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    }
  ]
}