# Request Header Modifier

> Modify and review request headers for specified websites

Canonical page: [https://chrome-stats.com/d/request-header-modifier](https://chrome-stats.com/d/request-header-modifier)

## Overview

- **ID:** `request-header-modifier`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Jamie van Brunschot
- **Category:** web-development,privacy-security
- **Daily users:** 41
- **Weekly downloads:** 3
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0
- **Last updated:** 2025-04-07
- **First published:** 2025-04-04
- **Size:** 14 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/request-header-modifier/)
- **Website:** [https://github.com/jvanbrunschot/firefox-mod-headers-extension](https://github.com/jvanbrunschot/firefox-mod-headers-extension)

## Rankings

- #17,705 — Overall
- #12 — modheader
- #12 — request
- #17 — modify
- #33 — header

## Permissions and access

### Permissions

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

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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 Modifier](https://chrome-stats.com/d/header-modifier) — 1 users
- [Modify Header Value](https://chrome-stats.com/d/modify-header-value) — 9,880 users, 3.62 / 5
- [Header Ext](https://chrome-stats.com/d/header-ext) — 3 users
- [HeaderMod](https://chrome-stats.com/d/headermod) — 303 users
- [OpenHeader](https://chrome-stats.com/d/openheader) — 1 users
- [Header Override](https://chrome-stats.com/d/header-override) — 39 users
- [Header Override](https://chrome-stats.com/d/headeroverride) — 7 users
- [ModHeader](https://chrome-stats.com/d/modheader-firefox) — 19,864 users, 3.37 / 5
- [Headers Middleman](https://chrome-stats.com/d/chrome-headers-middleman) — 11 users, 3.00 / 5
- [ModHeader By GreatJIN](https://chrome-stats.com/d/modheader-by-greatjin) — 27 users
- [Inspect HTTP request headers](https://chrome-stats.com/d/inspect-http-request-headers) — 1 users
- [Configurable Header Manager](https://chrome-stats.com/d/configurable-header-manager) — 2 users

---

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