Examine source code of Jira Clip

{
  "manifest_version": 2,
  "name": "Jira Clip",
  "version": "1.1",
  "description": "",
  "content_scripts": [
    {
      "matches": [
        "https://jira.ad.i-bs.pl/*"
      ],
      "js": [
        "clip.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a56ebbe6-752f-476a-a39c-8c92d5757873}"
    }
  }
}