Examine source code of JS_Rnnuer

{
  "manifest_version": 2,
  "name": "JS_Rnnuer",
  "version": "1.0",
  "applications": {
    "gecko": {
      "id": "@MyDABD",
      "strict_min_version": "57.0a1"
    }
  },
  "description": "Runs JS files on the browser",
  "icons": {
    "96": "icon96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "Runner.js"
      ]
    }
  ],
  "permissions": [
    "management",
    "proxy",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "activeTab",
    "storage",
    "contextMenus",
    "notifications",
    "alarms",
    "privacy",
    "clipboardWrite",
    "clipboardRead",
    "cookies"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon.png"
  }
}