Examine source code of iGetter Download Manager

{
  "browser_specific_settings": {
    "gecko": {
      "id": "igetterext@presenta.net",
      "strict_min_version": "115.0"
    }
  },
  "name": "iGetter Download Manager",
  "short_name": "iGetter WebExt.",
  "description": "__MSG_description__",
  "version": "3.4.0",
  "manifest_version": 3,
  "author": "Presenta Ltd.",
  "homepage_url": "http://www.igetter.net/faq.html#q2-24",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "helper.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "default_locale": "en",
  "permissions": [
    "cookies",
    "webRequest",
    "webRequestBlocking",
    "contextMenus",
    "nativeMessaging",
    "downloads",
    "notifications",
    "storage"
  ],
  "icons": {
    "16": "iGetter16.png",
    "48": "iGetter48.png",
    "128": "iGetter128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "iGetter128.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "commands": {
    "disable-integration": {
      "suggested_key": {
        "windows": "Alt+Period",
        "mac": "MacCtrl+Period",
        "linux": "Alt+Period"
      },
      "description": "__MSG_intrmenu__"
    },
    "temp-disable": {
      "suggested_key": {
        "windows": "Alt+M",
        "mac": "MacCtrl+M",
        "linux": "Alt+M"
      },
      "description": "__MSG_disinteg__"
    },
    "enable-integration": {
      "suggested_key": {
        "windows": "Alt+Comma",
        "mac": "MacCtrl+Comma",
        "linux": "Alt+Comma"
      },
      "description": "__MSG_eninteg__"
    }
  }
}