Examine source code of hns-online-extension

{
  "name": "hns-online-extension",
  "version": "0.0.2resigned1",
  "manifest_version": 2,
  "author": "diateam",
  "description": "Hns-online can connect to this extension to catch copy on remote view and send it to user clipboard",
  "browser_action": {
    "default_title": "hns-online extension",
    "default_popup": "clipboard.html",
    "default_icon": {
      "16": "16HNS_Online.png",
      "48": "48HNS_Online.png",
      "128": "128HNS_Online.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.hns-platform.com/*",
        "http://localhost/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "clipboardRead",
    "clipboardWrite",
    "tabs",
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{62a18d87-c415-4667-9886-37e949c45174}"
    }
  }
}