Video Keeper Helper 1.2.1

Video Keeper Helper adds YouTube downloads to the Video Keeper browser extension.

Mac

macOS 12 or newer, Apple Silicon and Intel, any browser.

1. Download Video-Keeper-Helper-1.2.1.pkg below and open it.
2. Follow the installer (it asks for your Mac password once).
3. Quit and reopen your browser, then use the Video Keeper button on a YouTube video.

Signed with a Developer ID and notarized by Apple. Includes yt-dlp, Python, QuickJS and FFmpeg (LGPL). After installation the helper keeps yt-dlp and itself up to date automatically.

Uninstall: sudo "/Library/Application Support/VideoKeeper/uninstall.sh"

Windows (Firefox)

Video-Keeper-Helper-Setup.exe (Windows helper 1.3.0) adds YouTube downloads to the Video Keeper add-on for Firefox on Windows 10 (22H2) or 11, including Windows on Arm.

1. Download Video-Keeper-Helper-Setup.exe below and run it. It is not code-signed yet, so Windows may show "Windows protected your PC": click More info → Run anyway.
2. The installer needs no administrator rights and installs for your user only.
3. Restart Firefox, then use the Video Keeper button on a YouTube video.

Includes yt-dlp (updates itself daily), Python, QuickJS and FFmpeg (LGPL). Uninstall: Settings → Apps → Installed apps → Video Keeper Helper.

Mac: the .zip and helper-update.json files are used by the helper's automatic updates — you don't need them.