Examine source code of SangerboxNote

{
  "name": "SangerboxNote",
  "description": "使用桑格笔记，获取更多期刊信息",
  "version": "1.1.3",
  "manifest_version": 2,
  "author": "小潘",
  "icons": {
    "16": "img/logo32.png",
    "48": "img/logo48.png",
    "128": "img/logo48.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "SangerboxNote",
    "default_icon": "img/logo32.png"
  },
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*",
    "cookies",
    "contextMenus",
    "storage"
  ],
  "background": {
    "scripts": [
      "js/background.min.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://pubmed.ncbi.nlm.nih.gov/*",
        "https://pubmed.ncbi.nlm.nih.gov/*",
        "http://ncbi.nlm.nih.gov/pmc/articles/*",
        "https://ncbi.nlm.nih.gov/pmc/articles/*",
        "http://www.ncbi.nlm.nih.gov/pmc/articles/*",
        "https://www.ncbi.nlm.nih.gov/pmc/articles/*",
        "*://*.edu.cn/*"
      ],
      "js": [
        "js/ncbi.min.js"
      ],
      "css": [
        "css/style.min.css"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "img/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ddbe566b-1f82-464c-be5d-1cf279fdb009}"
    }
  }
}