Examine source code of Show Password

{
  "name": "__MSG_app_name__",
  "description": "__MSG_app_description__",
  "version": "2.0.1",
  "manifest_version": 3,
  "author": "showpassword",
  "default_locale": "en",
  "icons": {
    "16": "/icons/icon-16.png",
    "32": "/icons/icon-32.png",
    "48": "/icons/icon-48.png",
    "64": "/icons/icon-64.png",
    "128": "/icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "js/36900.js"
    ]
  },
  "action": {
    "default_title": "__MSG_app_name__",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "/icons/icon-16.png",
      "32": "/icons/icon-32.png",
      "48": "/icons/icon-48.png",
      "64": "/icons/icon-64.png",
      "128": "/icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/a656d.js",
        "js/059c4.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/a656d.js",
        "js/877d0.js",
        "js/516ea.js"
      ],
      "all_frames": true,
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "storage",
    "tabs",
    "scripting",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "https://p.showpasswords.com/default/*",
    "https://c.showpasswords.com/firefox.json"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@show-hidden-pass",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "browsingActivity",
          "technicalAndInteraction",
          "websiteContent"
        ]
      }
    }
  }
}