tweak: mock and modify HTTP requests

Name: tweak: mock and modify HTTP requests
Rating: 4.1429 (28 reviews)
Author: tweak

By: tweak

tweak allows you to mock and modify HTTP requests without leaving the browser

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Features & Capabilities

Tweak is a powerful Chrome extension that allows developers to mock and modify HTTP requests without leaving the browser. You can easily intercept requests to change response data, headers, status codes, and request payloads. It supports delaying individual requests and organizing configurations via export/import features.

Premium features include custom JavaScript to modify responses, bulk rule changes with global variables, random data generators for mock data, and tools like breakpoints and logpoints for debugging. Note that redirecting requests or replacing webpage documents like HTML or images is not supported. Tweak streamlines web development by enabling flexible HTTP request manipulation all within your browser.

User Growth & Download Statistics

Add-on Developer Tools Programming

By:

tweak

Daily users:

1,577 -26

Rating:

4.14

(28)

Version:

8.4.2 Last updated: 2026-03-18

Version code:

6187694

Creation date:

2020-06-27

Risk:

Permissions:

Content scripts matches:

Size:

2.49MB

Email:

he*****@tweak-extension.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 2,528 ▼ 30

Other rankings

#287 in Web Development ▼ 2

#2 in mock keyword 15

#3 in modify keyword 37

#9 in request keyword 25

#14 in changelog keyword 9

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Other platforms

tweak: mock and modify HTTP requests (v8.4.2)

60,000 4.64

(234)

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:

tweak

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/tweak-extension/

Email:

he*****@tweak-extension.com

Website:

https://tweak-extension.com/

Permission Change History

2024-06-14: Version 8.2.0 → 8.3.0

Add Permissions: tabs

User Reviews

Users praise the add-on for its ease of use, effective mocking features, and time-saving capabilities in development and debugging tasks. However, multiple reviews highlight significant issues with reliability and compatibility on Firefox, including failure to intercept requests, outdated versions, and occasional glitches. While the interface is generally well-liked, some functional limitations and confusing UI behaviors are noted. Overall, the tool is appreciated when it works, but many encounter frustrating inconsistencies and lack of updates specifically for Firefox support.

Pros

Easy to use with setup and mocking achievable in a few minutes
Has saved significant development time by enabling request interception and mocking
Provides all necessary features like intercepting requests and replacing with mock responses
Nice-looking UI that users find appealing and practical
Effective for debugging by allowing custom status codes and error messages

Cons

Frequently unreliable or non-functional in Firefox, with many users reporting failure to intercept API calls
Extension seems outdated and incompatible with recent Firefox versions, causing errors and unexpected behavior
Limited capability, such as inability to mock more than one API at a time
Confusing UI elements like disappearing popups which may hinder usability
Some users experience delays and errors instead of expected mocked responses

Recent reviews

by Fi*****, 2025-04-16

by 天灭*****, 2025-04-01

by 远离*****, 2025-02-15

View all user reviews ›

Is tweak: mock and modify HTTP requests 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.

tweak: mock and modify HTTP requests requires some sensitive permissions that could impact your browser and data security. 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.

tweak: mock and modify HTTP requests is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

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