Examine source code of JulaingMouseGestures

{
  "manifest_version": 2,
  "name": "Julaing Mouse Gestures",
  "version": "1.0.3",
  "description": "Use right-click drag gestures to navigate pages and run actions on links, selections, images, X, YouTube, and archive pages.",
  "default_locale": "en",
  "permissions": [
    "tabs",
    "sessions",
    "storage",
    "downloads",
    "browserSettings",
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "config.js",
        "content.js"
      ],
      "css": [
        "gesture.css"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a29e078a-1014-4889-ac91-fbd8b8080afd}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}