Examine source code of Commandeer

{
  "manifest_version": 2,
  "name": "Commandeer",
  "version": "1.1",
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "scripting",
    "tabHide",
    "bookmarks",
    "history",
    "find",
    "search",
    "topSites"
  ],
  "description": "A Spotlight-like command bar for Firefox/Chrome that lets you search through your bookmarks, history, and open tabs.",
  "icons": {
    "48": "border-48.26d8830e.png"
  },
  "background": {
    "scripts": [
      "background.0b65dbb2.js"
    ]
  },
  "browser_action": {
    "default_title": "Commandeer",
    "default_popup": "ff-command-bar.55d4c414.html",
    "default_area": "tabstrip"
  },
  "action": {
    "default_title": "Commandeer",
    "default_popup": "ff-command-bar.55d4c414.html",
    "default_area": "tabstrip"
  },
  "commands": {
    "_toggle-command-bar": {
      "suggested_key": {
        "default": "Ctrl+Shift+0",
        "mac": "Command+Shift+0"
      },
      "description": "Toggle the command bar"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ec01fad7-de9f-442f-9e1b-58f9e46fc363}"
    }
  }
}