No video is listed
- Press Play on the page first, then open the popup or press Scan again.
- Browser pages such as
chrome://cannot be scanned; open the video page itself. - DRM-protected and YouTube videos are not supported.
The download stops with HTTP 403 or 404
- Links may have expired: reload the video page, play it again and open a new download from the popup.
- Some servers block access; KepVideo retries with the page's
Referer, but not every site allows downloads.
“Illegal invocation” after choosing Low speed
This was a bug in versions 0.2.14–0.2.26 and is fixed in 0.2.27. Update the extension and start the download again (downloads cannot resume).
The saved file will not play
- Make sure the download finished with Saved; a failed job can leave an incomplete file.
- Try another player (for example VLC) and send a report with the details below.
Send a report
- Press Report in the popup or download page — the Report page opens in a new tab.
- Choose the problem, add a short description, optionally your email, and review the details.
- Press Send report and keep the reference code (for example KV-7F3A2C), or Save report file for a JSON copy.
More detail is in the report guide.