Examine source code of BrowserHistorySync

{
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "default_locale": "zh_CN",
  "background": {
    "scripts": [
      "common.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": false,
      "run_at": "document_start",
      "js": [
        "common.js",
        "content.js"
      ]
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; img-src 'self'",
  "options_ui": {
    "page": "option.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_title": "My Bookmarks",
    "default_icon": "128.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "128.png",
    "48": "128.png",
    "128": "128.png"
  },
  "manifest_version": 2,
  "permissions": [
    "tabs",
    "bookmarks",
    "storage",
    "webNavigation"
  ],
  "version": "0.0.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "{86a087a5-6e34-411e-b69b-d104d914b599}"
    }
  }
}