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Cold Turkey Blocker icon

Cold Turkey Blocker

A desktop blocker for Windows and macOS whose browser extension makes locked blocks hard to dodge.

Last updated November 2026

About Cold Turkey Blocker

Cold Turkey Blocker is the strictest option here: once a block is locked, you cannot just turn it off. It is a desktop program for Windows and macOS, and the browser extension is only a companion that tells the app which sites you open. On its own the extension does nothing.

The free version blocks websites, supports timed blocks and shows statistics. Pro is a one-time purchase that adds app blocking, scheduled blocks, a password, the locking features and allowances. The vendor says you cannot simply uninstall it once a block is locked. That is the point, and also the risk, so set a block you can live with.

Cold Turkey is closed source. The Chrome listing says website usage data is used only for statistics and allowances and stays on your computer. The company's policy of 15 October 2026 says it does not collect your settings, web history, search history or which sites were blocked, but it does keep account and purchase data, and server logs with IP addresses for about two months. We found no Firefox Add-ons listing for the extension. Pick it when softer tools have failed.

Pros and cons

  • Locked blocks, passwords and uninstall prevention make bypassing hard
  • Blocks desktop apps as well as websites (Pro)
  • Policy says it does not collect web history or blocked-site data
  • Pro is a one-time purchase, with no subscription
  • Needs the desktop app; the extension is useless alone
  • Windows and macOS only; no Linux, ChromeOS or phone
  • Closed source, and no Firefox Add-ons listing that we found

Permissions

The Chrome store label lists web history, user activity and website content as handled data. The listing says this is used for statistics and allowances and stays on your computer.