Examine source code of mini Browser

{
  "icons": {
    "128": "icon.png"
  },
  "manifest_version": 2,
  "name": "mini Browser",
  "version": "5.0",
  "permissions": [
    "activeTab",
    "menus"
  ],
  "browser_action": {
    "default_icon": "icon.png"
  },
  "sidebar_action": {
    "default_title": "mini Browser",
    "default_panel": "popup.html",
    "default_icon": "icon.png",
    "browser_style": false
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{992a6915-8689-4230-9fc3-66493b35c781}"
    }
  }
}