CookieBlock

Name: CookieBlock
Rating: 3.5 (22 reviews)
Author: CookieBlock Team

By: CookieBlock Team Add-on

Automatically enforces cookie consent preferences to protect your privacy on any website you visit.

Overview

Firefox Add-ons Store

Daily users

1,999 ▲ 12

Data as of 2026-10-13

Rating:

3.50

(22)

Version:

1.1.0

Last updated: 2022-08-04

Features & Capabilities

CookieBlock is a powerful browser extension designed to protect your privacy by automatically enforcing your cookie consent preferences. Using advanced machine learning, it classifies cookies into four categories: Necessary, Functionality, Analytics, and Advertising, allowing you to selectively permit or block them with ease.

Unlike intrusive cookie banners, CookieBlock lets you define your policy once and guarantees that cookies you reject are actually removed, regardless of website honesty. Compatible with any website, it enhances privacy without interrupting your browsing experience. Developed by ETH Zürich researchers and featured at the USENIX Security Symposium, CookieBlock is an essential tool for modern web privacy.

User Growth & Download Statistics

Add-on Privacy & Security

By:

Daily users:

Rating:

Version:

1.1.0 Last updated: 2022-08-04

Version code:

5440187

Creation date:

2021-04-28

Firefox add-on GUID:

cookie.block.extension@gmail.com

Firefox add-on numeric ID:

2699187

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Size:

3.76MB

Email:

co*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-10-13

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:: CookieBlock Team
Firefox Add-ons Store: https://addons.mozilla.org/firefox/addon/cookieblock/
Email:: co*****@gmail.com
Website:: https://karelkubicek.github.io/post/cookieblock

User Reviews

CookieBlock is praised for its effective automatic removal of unnecessary cookies, enhancing user privacy with a client-side approach. However, multiple users report that it can break site functionality by removing essential cookies, necessitating frequent whitelisting and manual adjustments. The extension's interface is criticized for lacking clarity and control over its actions. Despite these issues, many appreciate its lightweight nature and contribution to reducing unwanted data collection, making it a valuable tool with room for improvement in usability and site compatibility.

Pros

Effectively removes unnecessary cookies without user intervention, enhancing privacy.
Allows manual whitelisting or temporary disabling on specific sites for flexibility.
Provides a unique client-based approach to respecting GDPR cookie consent.
Easy to use and does not slow down the browser significantly.
Helpful for blocking unwanted data collection and improving browsing experience.

Cons

Sometimes removes cookies that break site functionality (e.g., streaming sites like HBO, Disney+, or Gmail).
The interface lacks transparency and control, making it hard to see or understand what is being blocked.
Users need to manually configure exceptions often, which reduces automatic convenience.
Some users report the extension does not block cookie consent popups as promised.
Uninstall process is intrusive or cumbersome for some users.

Recent reviews

Doesnt work. try this site. https pureinfotech.com/move-taskbar-top-side-windows-11/

by bb***** 2025-07-07

Many thanks to the team for this ambitious project which addresses the issue of respecting GDPR cookie consent in an almost unique way: client-based! When we see the bad reviews from people who don't understand what happens when the module has some failed, it's a shame. Of course, it can happen, but that's rare and we can manually whitelist or temporarily disable, like all well-known privacy modules (uBlock, Privacy Badger...)

by ft***** 2025-05-16

View all user reviews ›

Is CookieBlock Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

CookieBlock requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

CookieBlock has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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