Videos protected by Digital Rights Management (DRM) generally cannot be downloaded by standard extensions. Age-Gated Content:
Different browsers can have their own quirks:
If you have exhausted all troubleshooting and the error persists, it might be time to explore other tools. A good downloading strategy often involves having a backup plan. Delete your browser cookies and cached data
Delete your browser cookies and cached data.
Browser-based video downloaders exist in a constant cat-and-mouse game with streaming platforms. The core reasons behind this failure include: Periodic updates to Chrome or Firefox can break
Close all windows completely and reopen them.
Periodic updates to Chrome or Firefox can break older versions of extensions. Conversely, the "new" update of VDH might be stricter, blocking downloads that used to work. Delete your browser cookies and cached data
: Go to the extension settings (cog icon) -> "More Settings..." -> scroll to the bottom and click "Reload addon." Then refresh your video page and try again.