Examine source code of Go Top

{
  "manifest_version": 2,
  "name": "Go Top",
  "version": "0.0.4resigned1",
  "description": "Scrolls website to top. Minimal and native look.",
  "icons": {
    "96": "icons/gotop@2.png"
  },
  "permissions": [
    "activeTab",
    "<all_urls>"
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "48": "icons/gotop.png",
      "96": "icons/gotop@2.png"
    },
    "default_title": "Go to top"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "{3a46a1eb-9af5-47b6-9c75-94f908d82d81}"
    }
  }
}