Examine source code of Quora Ad removal

{
  "manifest_version": 2,
  "name": "Ad removal",
  "version": "1.1",
  "description": "Removes all ads and other sponsored content on Quora website.",
  "icons": {
    "48": "icons/Block-icon.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/Block-icon.png",
    "default_title": "Adblock-Quora",
    "default_popup": "popup/adblock_pop.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.quora.com/*"
      ],
      "js": [
        "content_scripts/adblock.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ab11750e-1552-4526-9012-95b3fe0ddbfa}"
    }
  }
}