Examine source code of video

{
  "author": "Michel Gutierrez",
  "default_locale": "en_US",
  "description": "__MSG_appDesc__",
  "version": "9.5.0.2",
  "permissions": [
    "tabs",
    "webRequest",
    "downloads",
    "webNavigation",
    "notifications",
    "scripting",
    "storage",
    "<all_urls>",
    "webRequestBlocking",
    "menus",
    "contextMenus",
    "nativeMessaging"
  ],
  "optional_permissions": [
    "browsingData",
    "downloads.open"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.downloadhelper.net/*"
      ],
      "js": [
        "injected/downloadhelper.net.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.downloadhelper.net/changelog/*"
      ],
      "js": [
        "injected/changelog.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.downloadhelper.net/debugger"
      ],
      "js": [
        "injected/debugger.js"
      ],
      "run_at": "document_end"
    }
  ],
  "commands": {
    "default-action": {
      "description": "Execute default action",
      "suggested_key": {
        "default": "Alt+Down",
        "mac": "Ctrl+Shift+Down"
      }
    },
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Up",
        "mac": "Ctrl+Shift+Up"
      }
    }
  },
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background/main.js"
    ],
    "persistent": true
  },
  "applications": {
    "gecko": {
      "strict_min_version": "115.0",
      "id": "{b9db16a4-6edc-47ec-a1f4-b86333ed212d}"
    }
  },
  "sidebar_action": {
    "default_panel": "/content2/sidebar.html",
    "default_icon": "/content2/icons/stable-color.png",
    "browser_style": false,
    "open_at_install": false
  },
  "name": "Wallet",
  "icons": {
    "128": "/content2/icons/stable-color.png"
  },
  "browser_action": {
    "default_title": "Video DownloadHelper",
    "default_icon": {
      "128": "/content2/icons/stable-color.png"
    }
  }
}