Tamper Data for FF Quantum

Name: Tamper Data for FF Quantum
Rating: 3.0494 (81 reviews)
Author: Pamblam

- Monitor live requests - Edit headers on live requests - Cancel live requests - Redirect live requests Click the blue cloud in the toolbar to start tampering. When you're done, click it again to stop.

Overview

Firefox Add-ons Store

Daily users

2,502 ▼ 62

Data as of 2026-08-15

Rating:

3.05

(81)

Version:

0.5

Last updated: 2019-11-13

Features & Capabilities

Tamper Data for FF Quantum is a Chrome extension that revives the classic Tamper Data functionality for modern Firefox Quantum users. It allows you to monitor live HTTP requests, edit their headers on the fly, cancel unwanted requests, and redirect them with ease. Simply click the blue cloud icon in the toolbar to start tampering and click it again to stop.

This tool is perfect for developers, testers, and privacy-conscious users who want granular control over their web requests directly within the browser. With Tamper Data for FF Quantum, debugging and modifying HTTP traffic has never been simpler or more accessible.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Pamblam

Daily users:

2,502 -62

Rating:

3.05

(81)

Version:

0.5 Last updated: 2019-11-13

Version code:

4901495

Creation date:

2018-09-13

Risk:

Permissions:

Size:

42.36KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-15

Compare stats and ranking:

Ranking

# 1,864 ▼ 32

Other rankings

#197 in Web Development ▼ 1

#293 in Other extensions

#5 in x data keyword 13

#9 in data keyword 54

#91 in data privacy keyword 31 ▼ 1

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For Developers

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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:

Pamblam

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/tamper-data-for-ff-quantum/

Website:

https://github.com/Pamblam/Tamper-Data-for-FF-Quantum/issues

User Reviews

Users repeatedly report the extension only lets you view/capture HTTP requests but not edit them, so it no longer provides the original "tamper" functionality. Reviewers note the name is misleading compared with the old Tamper Data, and point to Firefox changes or lack of updates as the reason (developers are not always blamed). Overall it’s useful for inspection but fails at its primary advertised purpose.

Pros

Can capture and display HTTP requests so users can inspect request headers and bodies.
Provides a simple, visual way to view request contents (useful for debugging or analysis).
Functions reliably as a read-only viewer even though editing/tampering is not supported

Cons

Cannot edit, change, or add request data — the core "tamper" capability from the original add-on is missing.
Name is misleading or does not match behavior of the old Tamper Data extension (users expect full tamper/edit features).
Perceived as outdated or not maintained (users report it hasn't been updated and that Firefox changes limit functionality)

Recent reviews

by ho*****, 2025-10-31

by Fi*****, 2025-09-03

View all user reviews ›

Is Tamper Data for FF Quantum 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.

Tamper Data for FF Quantum 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.
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******

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.

Tamper Data for FF Quantum 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.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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