Examine source code of Tabbie : easy tab viewer

{
  "manifest_version": 2,
  "name": "Tabbie : easy tab viewer",
  "short_name": "tabbie",
  "description": "Tabbie helps you to view, refresh, activate, search, favourite and group all your open tabs by domains from single interface.",
  "version": "1.1.1resigned1",
  "author": "010 Pixel",
  "developer": {
    "name": "010 Pixel",
    "url": "http://010pixel.com"
  },
  "permissions": [
    "tabs"
  ],
  "browser_action": {
    "browser_style": false,
    "default_icon": {
      "16": "images/icon16.png",
      "32": "images/icon32.png"
    },
    "default_popup": "index.html"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Shift+T",
        "linux": "Alt+Shift+T",
        "mac": "Alt+Shift+T",
        "windows": "Alt+Shift+T"
      }
    }
  },
  "icons": {
    "16": "images/icon16.png",
    "24": "images/icon24.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "64": "images/icon64.png",
    "96": "images/icon96.png",
    "128": "images/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c6c81214-a710-4ab4-90cb-1e22acc8fd2c}"
    }
  }
}