# HeaderTools - Inject and Edit Request Headers

> HeaderTools is a versatile and user-friendly extension designed to provide users the capability to manipulate and inject request headers based on regex domain selectors.

Canonical page: [https://chrome-stats.com/d/headertools](https://chrome-stats.com/d/headertools)

## Overview

- **ID:** `headertools`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Darren Anderson
- **Category:** web-development,privacy-security
- **Daily users:** 108
- **Weekly downloads:** 2
- **Version:** 1.0
- **Last updated:** 2024-02-19
- **First published:** 2024-02-18
- **Size:** 500 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/headertools/)
- **Website:** [https://github.com/darrena092/header-tools/issues](https://github.com/darrena092/header-tools/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/headertools/privacy/](https://addons.mozilla.org/firefox/addon/headertools/privacy/)

## Description

HeaderTools is a powerful Chrome extension that enables users to inject and modify HTTP request headers efficiently. By defining rules using regex domain selectors, users can target one or more web requests and customize multiple headers simultaneously. This tool is ideal for developers, QA testers, and anyone looking to manipulate web requests dynamically and flexibly.

## Rankings

- #11,239 — Overall
- #5 — inject
- #14 — request
- #26 — header
- #165 — target
- #207 — define

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `storage`
- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Header request Injector](https://chrome-stats.com/d/header-request-injector) — 3 users
- [Header Tool](https://chrome-stats.com/d/header-tool) — 23 users
- [HeaderMod](https://chrome-stats.com/d/headermod) — 303 users
- [HeaderTweaker](https://chrome-stats.com/d/headertweaker) — 4 users
- [HTTP Header Plugin](https://chrome-stats.com/d/http-header-plugin) — 6 users
- [Header Ext](https://chrome-stats.com/d/header-ext) — 3 users
- [Headers Middleman](https://chrome-stats.com/d/chrome-headers-middleman) — 11 users, 3.00 / 5
- [Header Editor](https://chrome-stats.com/d/simple-header-editor) — 5 users
- [Headers](https://chrome-stats.com/d/headers) — 520 users, 5.00 / 5
- [Header Forge](https://chrome-stats.com/d/header-forge) — 27 users, 5.00 / 5
- [Modify HTTP Headers](https://chrome-stats.com/d/modify-http-headers) — 50 users, 5.00 / 5
- [xHeader - Modify HTTP headers](https://chrome-stats.com/d/xheader) — 2 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/headertools)