Video DownloadHelper Companion App 1.2.4 Some operations required by Video DownloadHelper cannot be performed form within the browser. In order to be able to still do the job, the add-on relies on an external application that is called transparently. We call it the Companion Application.

Firefox Video DownloadHelper 需要安装后使用的插件Video DownloadHelper Companion App 1.2.4.rar （亲测可用）