MV3 Cookie Editor & Manager for Chrome — CookieJar

EditThisCookie & Cookie AutoDelete alternative for MV3. Edit, delete & export cookies locally. Privacy score & smart categorization.

CookieJar is a Manifest V3–native cookie editor and cookie manager for Chrome. If you relied on EditThisCookie or Cookie AutoDelete before Manifest V2 was removed, CookieJar is the MV3-native alternative built to replace them — and everything runs locally in your browser. When Manifest V2 is fully removed on August 31, 2026, older cookie extensions stop working. CookieJar is MV3-native, so it keeps working. Key features: - View all cookies for the current tab and filter by domain - Create, edit and delete cookies through a simple UI - Export and import in JSON and Netscape (cookies.txt) formats — handy for curl, yt-dlp and Playwright workflows - Instantly search cookies by name, domain or value - Automatic categorization (essential, functional, analytics, advertising, social) - Optional automatic cleanup: turn it on to clear cookies on a schedule and at browser startup — keep the sites you want with a permanent allowlist (whitelist) and let others expire after a set time (greylist). Opt-in and fully local - Auto-delete on tab close (opt-in): when you close a tab, cookies for that domain are cleaned up automatically — a Cookie AutoDelete–style behavior, with your whitelist (permanent keep) and greylist (timed expiry) still protecting the sites you choose - Per-site privacy score - Dark and light theme support - Manifest V3 native for strong performance and security Who it's for: - Web developers debugging authentication flows and sessions - QA engineers testing across different cookie states - Anyone migrating from a cookie extension that stopped working - Privacy-conscious users who want to manage tracking data themselves Privacy: your cookies are stored and processed on your device. CookieJar does not collect, upload or transmit your cookie data — it works entirely locally.