Request Interceptor

Name: Request Interceptor
Rating: 3.9231 (13 reviews)
Author: Vinay Kaparthi

Intercept HTTP and HTTPS Requests. Add custom rules to modify request/response headers, block/redirect requests, modify query params. Example Usage: This extension can be used to block all ads having url (*/ad.x.com/*) by creating rules

Download

Install

Features & Capabilities

Request Interceptor is a powerful Chrome extension designed to give you full control over your HTTP and HTTPS requests. Easily create custom rules to block or redirect unwanted requests, such as ads from specific URLs (e.g., /ad.x.com/).

This extension also lets you throttle responses of static resources and add, modify, or delete request and response headers and query parameters. It's an essential tool for developers and power users aiming to tailor web traffic to their needs, optimize browsing, or test various scenarios without changing server configurations.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Daily users:

Rating:

Version:

1.5.0 Last updated: 2023-10-20

Version code:

5639536

Creation date:

2019-07-29

Risk:

Permissions:

Size:

1.88MB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-14

Compare stats and ranking:

Ranking

# 4,290 ▼ 16

Other rankings

#4 in request keyword 26

#34 in interest keyword 6

#41 in query keyword 13 ▲ 1

#45 in modify keyword 37 ▼ 1

#60 in response keyword 15

Upgrade to see more rankings

Other platforms

Request Interceptor (v2.0.1)

10,000 4.05

(61)

Request Interceptor (v1.2.0)

1,176 4.80

(4)

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:

Vinay Kaparthi

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/request-interceptor/

User Reviews

Request Interceptor helps users manage and modify HTTP requests effectively for testing scenarios and URL redirection. However, multiple users report that the interface is not intuitive and lacks clear instructions, causing confusion about saving and enabling the add-on. It also has issues working with localhost sites, unlike similar tools on other browsers. Post-update behavior forces settings tabs to open every browser start. Overall, it performs its core function but could benefit from better UI, documentation, and expanded features.

Pros

Effective in managing and modifying HTTP requests for testing and controlled data scenarios.
Relatively easy to use once understood, helpful for testing feature behavior under different API responses.
Supports redirecting and replacing parts of URLs with regex, offering flexibility.
Performs adequately in general use as intended for intercepting requests.

Cons

User interface is not very intuitive; saving changes and enabling the add-on are unclear to users.
Lacks clear documentation or tutorials, leading to confusion about features and usage.
Issues with localhost or locally hosted web applications not being supported or working properly.
After updates, the add-on sometimes opens the settings tab every time Firefox launches, annoying users.
Some desired features like auto-responding or modifying request bodies are missing or limited.

Recent reviews

by 天灭*****, 2025-03-30

by 远离*****, 2025-02-26

A tutorial would be helpful. I can't get it to add the desired query.

by Fi*****, 2023-12-22

View all user reviews ›

Is Request Interceptor 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.

Request Interceptor 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.
Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
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.

Request Interceptor 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 **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******