Examine source code of i Novel Reader

{
  "description": "i Novel Reader",
  "manifest_version": 2,
  "name": "i Novel Reader",
  "version": "0.0.2",
  "permissions": [
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://m.sogou.com/*"
      ],
      "css": [
        "CSS_tc_con.css"
      ]
    },
    {
      "matches": [
        "*://m.mayiwxw.com/*"
      ],
      "css": [
        "CSS_novelcontent.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ceee9906-9e1c-4853-bda9-324eaf07b617}"
    }
  }
}