The "Sadly we failed" error is typically triggered by one of the following roadblocks:
If you’ve used – the popular browser extension for Firefox and Chrome – you’ve likely seen that oddly polite but infuriating red banner:
If you need a tool that almost never fails, yt-dlp is the unanimous top recommendation across tech communities. It is open-source and updated almost daily to bypass new website blocks. The "Sadly we failed" error is typically triggered
For free sites like YouTube, Vimeo, Dailymotion, or educational platforms, DRM is rarely the issue.
Check your firewall rules. Ensure that vdhcoapp.exe , ffprobe.exe , and ffmpeg.exe are all permitted to communicate through your network. 2. Clear Cache and Cookies Corrupted browser data is a frequent culprit. Check your firewall rules
Clear cookies and cached data for the specific site hosting the video. Restart your browser and attempt the download again. 3. Change the Download Variant
Ensure the Video DownloadHelper companion app is up to date. Clear Cache and Cookies Corrupted browser data is
Firefox often handles third-party media extraction tools with fewer security restrictions than Chromium-based browsers. Alternative Methods to Capture the Video
If a video requires a login (age-check), VDH may fail to process the credentials needed to access the stream. For videos that consistently fail, community members on suggest using alternative web-based tools like cobalt.tools or dedicated software like for macOS. Companion App is correctly configured to handle these downloads? Sadly we failed at downloading that specific media. #2540 21 Sept 2025 —
Browser-based video downloaders exist in a constant cat-and-mouse game with streaming platforms. The core reasons behind this failure include:
Rapid or excessive downloads from one IP address can lead to a temporary block by the hosting site, often masquerading as a technical failure. Outdated Software: Using an older version of the extension or the Companion App (CoApp) can lead to compatibility issues. Troubleshooting & Fixes If you encounter this error, try these steps in order: Reload the Add-on: A simple reset often fixes temporary glitches. Open VDH settings (click the icon -> cog icon -> More Settings Scroll to the bottom and click Reload addon , then refresh your video page. Clear Cookies: