Examine source code of Poblink

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "version": "0.5.0",
  "short_name": "__MSG_appShortName__",
  "homepage_url": "https://github.com/Dullson/Poblink",
  "manifest_version": 2,
  "default_locale": "en",
  "icons": {
    "48": "images/icon-48.png",
    "96": "images/icon-96.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/contentscript.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "scripts/Poblink.user.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6ac0cce4-6821-4051-be55-9ce3f0cefc81}"
    }
  }
}