Examine source code of 8chanExpander

{
  "manifest_version": 2,
  "name": "8chanExpander",
  "version": "1.2resigned1",
  "description": "Remaps the \"Click to expand\" link on 8chan to opening the thread in a new tab. Also remaps Cntrl+E to to open all \"Click to expand\" links in new tabs. Questions and concerns: please open an issue on https://gitlab.com/basilthesecond/8chanexpander.",
  "content_scripts": [
    {
      "matches": [
        "*://8ch.net/*"
      ],
      "js": [
        "scripts/jquery_min.js",
        "scripts/expander.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{110ea1d6-3d30-4eeb-884a-38d6547773f3}"
    }
  }
}