Examine source code of Istoric Preturi

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "short_name": "__MSG_extensionName__",
  "version": "2.39",
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "128": "img/icon.png"
  },
  "browser_action": {
    "default_title": "__MSG_extensionName__",
    "default_icon": "img/icon.png",
    "default_popup": "mainPopup.html"
  },
  "author": "www.istoric-preturi.info",
  "background": {
    "page": "background.html"
  },
  "content_scripts": [
    {
      "js": [
        "js/tabLoader.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    }
  ],
  "content_security_policy": "script-src 'self' https://www.istoric-preturi.info https://cdn.istoric-preturi.info https://cdnjs.cloudflare.com https://code.getmdl.io https://www.gstatic.com; object-src 'self'",
  "permissions": [
    "http://*/*",
    "https://*/*",
    "tabs",
    "contextMenus"
  ],
  "web_accessible_resources": [
    "icon48.png",
    "img/*.*"
  ],
  "applications": {
    "gecko": {
      "strict_min_version": "79.0",
      "id": "{5187f368-e82e-4892-a80c-8c0c4d4901ec}"
    }
  }
}