Examine source code of Web Risk Info

{
  "manifest_version": 2,
  "name": "__MSG_extension_name__",
  "short_name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "version": "4.9",
  "offline_enabled": false,
  "incognito": "spanning",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "webrisk@info",
      "strict_min_version": "79.0"
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "skin/webrisk_unknown_16.png"
    },
    "default_popup": "content/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "notifications",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "http://*/*",
    "https://*/*"
  ],
  "icons": {
    "16": "skin/webrisk_16.png",
    "32": "skin/webrisk_32.png",
    "48": "skin/webrisk_48.png",
    "64": "skin/webrisk_64.png",
    "128": "skin/webrisk_128.png"
  }
}