Examine source code of BannerSlayer — Block App Download Popups

{
  "manifest_version": 2,
  "name": "BannerSlayer — Block App Download Popups",
  "version": "1.0.0",
  "description": "Instantly destroys \"Open in App\" banners, smart app banners, and interstitial overlays on Reddit, YouTube, Pinterest, LinkedIn, and every other site that won't leave you alone.",
  "browser_specific_settings": {
    "gecko": {
      "id": "bannerslayer@extension",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "permissions": [
    "storage",
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png"
    },
    "default_title": "BannerSlayer"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  }
}