Examine source code of Fast Copy Links

{
  "manifest_version": 2,
  "name": "Fast Copy Links",
  "version": "1.7",
  "description": "Copy links on Ctrl+C (MacOS: Cmd+C).",
  "icons": {
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png"
  },
  "applications": {
    "gecko": {
      "strict_min_version": "61.0",
      "id": "@fcl"
    }
  },
  "permissions": [
    "clipboardWrite",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "Fast Copy Links",
    "default_popup": "popup/options.html"
  },
  "background": {
    "scripts": [
      "/scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "/scripts/content.js"
      ],
      "all_frames": true
    }
  ]
}