OptMeowt

Name: OptMeowt
Rating: 4.1111 (9 reviews)
Author: privacy-tech-lab

By: privacy-tech-lab

OptMeowt allows Web users to make use of their rights to opt out from the sale and sharing of personal data

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Features & Capabilities

OptMeowt is a Chrome extension designed to empower web users by automating their right to privacy under laws like the California Consumer Privacy Act (CCPA). By sending Global Privacy Control (GPC) signals upon visiting websites, OptMeowt signals your preference to opt out from the sale and sharing of your personal information.

The extension requires necessary permissions solely to send opt-out signals and does not collect or share any of your personal data. It supports user privacy through transparent open-source code, accessible on GitHub. For users encountering issues or wanting to learn more, detailed FAQs and the official Global Privacy Control website provide valuable resources. OptMeowt offers a seamless solution for maintaining your online privacy effortlessly.

User Growth & Download Statistics

Add-on Privacy & Security

By:

Daily users:

Rating:

Version:

6.2.0 Last updated: 2026-06-07

Version code:

6296219

Creation date:

2020-11-23

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

3.71MB

Email:

se*****@privacytechlab.org

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 8,690 ▼ 200

Other rankings

#41 in sale keyword 38 ▲ 2#224 in sharing keyword 36 ▼ 1

Other platforms

OptMeowt (v6.2.0)

8,000 4.00

(7)

For Developers

Monetize with App Pass Boost with Extension Booster

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:

privacy-tech-lab

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/optmeowt/

Email:

se*****@privacytechlab.org

Website:

https://privacytechlab.org/

Permission Change History

2025-11-21: Version 5.1.2 → 5.2.0

Remove Permissions: cookies

2024-05-24: Version 5.0.0 → 5.0.1

Add Host permissions: <all_urls>

Add Permissions: declarativeNetRequest scripting

Remove Permissions: <all_urls>

User Reviews

by Pr*****, 2025-11-15

by 远离*****, 2025-03-29

by 全民*****, 2025-02-19

View all user reviews ›

Is OptMeowt 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.

OptMeowt requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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.

OptMeowt is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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