# Forget Me Not - Forget cookies & other data

> Make the browser forget website data (like cookies, local storage, etc.), except for the data you want to keep by adding domains to a whitelist, graylist, blacklist, or redlist.

Canonical page: [https://chrome-stats.com/d/forget\_me\_not](https://chrome-stats.com/d/forget_me_not)

## Overview

- **ID:** `forget_me_not`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Lusito
- **Category:** privacy-security,tabs
- **Daily users:** 8,562
- **Weekly downloads:** 49
- **Rating:** 4.32 / 5 (285 ratings)
- **Version:** 2.2.8
- **Last updated:** 2020-09-13
- **First published:** 2017-11-19
- **Size:** 1.89 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/forget_me_not/)
- **Website:** [https://github.com/Lusito/forget-me-not/issues](https://github.com/Lusito/forget-me-not/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/forget\_me\_not/privacy/](https://addons.mozilla.org/firefox/addon/forget_me_not/privacy/)

## Description

Forget Me Not is a privacy-focused Chrome extension that intelligently manages website data such as cookies, local storage, history, and more. It allows you to add domains to customizable whitelists, graylists, blacklists, or redlists to control exactly which data is retained or erased.

Features include automatic data deletion when leaving a website, on browser startup, or instantly blocking data setting. It supports deletion of third-party cookies and multiple types of site data including forms, passwords, cache, IndexedDB, service workers, and plugin data. The extension respects your privacy by not collecting or sending any user data externally.

With a fresh UI in version 2.0, extensive unit testing for reliability, and detailed customization options, Forget Me Not offers effortless privacy management tailored to your browsing habits. It also provides manual cleaning tools and helpful documentation for easy setup and use.

## Rankings

- #849 — Overall
- #57 — Tabs
- #188 — Privacy & Security
- #1 — forget
- #5 — data
- #7 — x data

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `browsingData`
- `cookies`
- `downloads`
- `history`
- `notifications`
- `webNavigation`
- `webRequest`
- `webRequestBlocking`
- `contextualIdentities`
- `<all_urls>`

### Content script matches

- `lusito.github.io`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Reviewers praise Forget Me Not for its clean UI and strong cookie-management, with automatic deletion of non-saved cookies and reduced tracking. It works well when properly configured and can permanently delete existing cookies, with notable mobile usefulness. However, critics point to lack of ongoing maintenance, occasional performance drawbacks (page hangs or delays), incomplete blocking on some sites, and a sometimes tricky setup that requires enabling certain options. Overall, a solid privacy tool with caveats about upkeep and configuration.

### Pros

- Clean, logical UI and generally easy to use.
- Automatically deletes cookies you don't save, reducing tracking and personalized ads.
- Works as intended and is effective when configured correctly.
- Can permanently delete existing cookies.
- Strong mobile support; essential on Firefox Mobile for managing cookies and site data.

### Cons

- No longer maintained / updates stopped.
- Page load delays or hangs in some configurations.
- Does not block every cookie; some cookies persist on certain pages.
- Configuration is tricky and requires enabling specific options (sometimes not obvious).

## Similar extensions and apps

- [ForgetMe](https://chrome-stats.com/d/forget-me) — 11 users
- [Forget Button - Clean your Browser](https://chrome-stats.com/d/ecleaner-forget-button) — 672 users, 4.18 / 5
- [WO2WEE Privacy Guard](https://chrome-stats.com/d/wo2wee-privacy-guard) — 1 users
- [Forgetful](https://chrome-stats.com/d/forgetful) — 4 users
- [TW Cookie & Browser Cleaner with Whitelist](https://chrome-stats.com/d/tw-cookie-browser-cleaner) — 1 users
- [Forget about this site](https://chrome-stats.com/d/forget-about-this-site) — 165 users, 4.58 / 5
- [Forget Tab](https://chrome-stats.com/d/forget-tab) — 72 users, 2.69 / 5
- [Single Site Wipe](https://chrome-stats.com/d/single-site-wipe) — 7 users
- [Auto-Delete Cookies for Privacy](https://chrome-stats.com/d/autodelete-cookies-for-privacy) — 2 users
- [Clear Cookies and Storage Button](https://chrome-stats.com/d/clear-storage-button) — 247 users, 3.48 / 5
- [Auto-Clear Site Data](https://chrome-stats.com/d/auto-clear-site-data) — 121 users, 3.73 / 5
- [ClearTrace Browser - Automatic History Cleaner](https://chrome-stats.com/d/cleartrace-history-cleaner) — 7 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/forget_me_not)