Examine source code of MoodBoard

{
  "manifest_version": 2,
  "name": "MoodBoard",
  "version": "1.0",
  "description": "A unique Firefox add-on to save and organize creative inspirations in a beautiful mood board.",
  "permissions": [
    "contextMenus",
    "storage",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1d110fe7-70ba-4120-a509-6d5ab3a414eb}"
    }
  }
}