Examine source code of Sidebar navigator

{
  "manifest_version": 2,
  "name": "Sidebar navigator",
  "version": "1.1resigned1",
  "permissions": [
    "menus",
    "tabs",
    "<all_urls>",
    "storage",
    "bookmarks",
    "downloads"
  ],
  "sidebar_action": {
    "default_icon": "sn48.png",
    "default_title": "Sidebar navigator",
    "default_panel": "panel.html",
    "browser_style": false,
    "open_at_install": true
  },
  "web_accessible_resources": [
    "info.html"
  ],
  "browser_action": {
    "default_icon": "sn48.png",
    "default_title": "Sidebar navigator",
    "default_popup": "popup.html",
    "browser_style": false
  },
  "icons": {
    "48": "sn48.png"
  },
  "applications": {
    "gecko": {
      "id": "dobrojutro@sidebarNavigator.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "navigation.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Alt+Y"
      }
    }
  }
}