Examine source code of Remove YouTube Video Blur

{
  "manifest_version": 2,
  "name": "Remove YouTube Video Blur",
  "version": "1.0",
  "description": "Addon that removes that annoying and distracting blur that occurs in YouTube ",
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "removeytvideoblur.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{871c7a07-40d5-48e6-8cf8-ad9793db7cec}"
    }
  }
}