Header request Injector

Name: Header request Injector
Author: JedGBC

By: JedGBC Add-on

Intercept HTTP/HTTPS requests and inject custom headers based on configurable URL filters.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-07-25

Version:

1.1.0

Last updated: 2026-07-19

Features & Capabilities

The extension allows the user to define rules for modifying HTTP/HTTPS headers (adding, editing, or removing headers) that are automatically applied to network requests matching user-configured URL filters, while displaying the currently active rules in the popup.

Built for developers who need to simulate API clients, test gateway rules, or validate backend behavior with specific headers.

Key features:

URL filter matching with AND / OR logic
Optional URL exclude rules
Custom request headers per configuration
Global ON/OFF toggle
Recent match log (method, URL, timestamp, injected headers)
DevTools helper for quick inspection, commands on console:
HeaderInjector()
HeaderInjector('config')
HeaderInjector('log')
HeaderInjector.clear / HeaderInjector('log').clear / HeaderInjector('config').clear
Local storage only (no remote sync or external servers)

How it works:

You configure filters and headers in the popup
The extension applies rules in the browser
Matching requests are logged for debugging

Privacy:

Data is stored locally in your browser storage
No analytics, no telemetry, no external data collection

Intended use:

Development, QA, staging, and local debugging environments

User Growth & Download Statistics

Add-on

By:

JedGBC

Daily users:

Version:

1.1.0 Last updated: 2026-07-19

Version code:

6364164

Creation date:

2026-07-15

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

56.15KB

Email:

jb*****@gmail.com

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-25

Compare stats and ranking:

Ranking

# 65,820 ▼ 76

Other rankings

#60 in inject keyword 13 #68 in request keyword 19 ▲ 10#139 in gateway keyword 12 ▲ 3#210 in header keyword 24 ▼ 2

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:

JedGBC

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/header-request-injector/

Email:

jb*****@gmail.com

Is Header request Injector 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.

Header request Injector requires some sensitive permissions that could impact your browser and data security. 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.
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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.

Header request Injector is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

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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