Examine source code of Black Friday Replacer

{
  "manifest_version": 2,
  "name": "BlackFridayReplacer",
  "author": "Richard Hanna",
  "version": "1.1resigned1",
  "description": "Replace \"Black Friday\" in webpages by a random green eco tips",
  "icons": {
    "48": "icons/48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "replacer.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{da655a50-83ae-4ff1-8c3c-12501b95b72c}"
    }
  }
}