Examine source code of Screenshot In ONE Click

{
  "manifest_version": 2,
  "name": "Screenshot",
  "description": "A simple extension that allows users to take screenshots of their browser window and save them to their system.",
  "version": "1.0",
  "permissions": [
    "tabs",
    "desktopCapture"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{74f433cd-2fb0-405c-976a-53b7cb7564c5}"
    }
  }
}