The Video DownloadHelper license key is a unique alphanumeric code purchased from the official DownloadHelper website. It acts as a registration key to activate the premium version of the extension on a specific browser (Firefox) for your user profile.

The free version of VDH is highly functional, but the license key removes several limitations, especially for heavy users:

The lifetime license is approximately (around €20).

your license key into the field. Press Enter to register.

If your payment fails, try a different payment method if available. Contact your bank or card issuer to ensure the transaction is being allowed. The developer is aware of these issues and is working to provide more payment options.

The developer's payment system is linked to your browser, so your license is often automatically applied if you purchase it from the same browser you use.

Always keep your original license email. Use the link provided in that email to re-validate your license on the new installation. The license is designed to be reinstalled, but you may need to go through the unlock process. If you cannot find your email, contact the official support at licenses@downloadhelper.net with any purchase details you have.