Examine source code of pubmed-download

{
  "name": "pubmed-download",
  "description": "打开pubmed后，可以点击按钮跳转sci-hub下载并显示影响因子和jcr分区。（部分文章不能下载或显示影响因子、jcr分区）",
  "version": "1.4.0",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "asd-f.js"
    ],
    "persistent": false
  },
  "permissions": [
    "webRequestBlocking",
    "permissions",
    "storage",
    "background"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://pubmed.ncbi.nlm.nih.gov/*"
      ],
      "js": [
        "Script1-f.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{11487b5b-280c-4ef6-ace4-fbc0d02ab2b1}"
    }
  }
}