Hi, This forum is intended to help users with Mozilla products, such as Firefox, while your question is related to a third-party extension. As a moderator, I'm going to mark this thread as off-topic and lock the thread since it is not a subject covered in the support forum. Please see [[Mozilla Support rules and guidelines]]. To get help with Video DownloadHelper, please refer to [https://help.downloadhelper.net/ their support site].