Examine source code of autojump

{
  "name": "__MSG_extName__",
  "version": "0.1.4",
  "description": "__MSG_extDescription__",
  "manifest_version": 2,
  "author": "linbingquan",
  "default_locale": "en",
  "action": {
    "default_popup": "popup.html",
    "default_title": "autojump"
  },
  "icons": {
    "48": "icon.png",
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.oschina.net/action/GoToLink?url=*",
        "*://gitee.com/link?target=*",
        "*://link.zhihu.com/?target=*",
        "*://link.juejin.cn/?target=*",
        "*://link.csdn.net/?target=*",
        "*://www.jianshu.com/go-wild?ac=2&url=*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5e646af9-b9e7-43f7-8479-f81c6f8a4c52}"
    }
  }
}