Understanding Video DownloadHelper Firefox License Keys A is a unique alphanumeric code that unlocks premium features for the popular Video DownloadHelper extension. While the basic extension is free to use on thousands of websites, a license is primarily required to remove watermarks from certain converted or aggregated videos. Why You Might Need a License Key
: You can use your license on all computers you personally use. There is a security lock after 8 installations that can be cleared via email verification. Google Groups The Companion App (CoApp) video downloadhelper firefox license key