# Custom Header Values

> Adds Header Values to requests if a matching URL is found.

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

## Overview

- **ID:** `custom-header-values`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** TBednarek
- **Category:** web-development
- **Daily users:** 7
- **Version:** 1.6
- **Last updated:** 2025-06-07
- **First published:** 2025-06-04
- **Size:** 15 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/custom-header-values/)
- **Website:** [https://expandmade.com](https://expandmade.com/)

## Description

Custom Header Values lets you add custom HTTP headers to specific URLs in Firefox. Easily manage, save, import, and export header configurations through a user-friendly interface—perfect for developers, testers, and advanced users.

## Rankings

- #39,441 — Overall
- #7 — value
- #67 — header
- #159 — custom feed
- #160 — custom font
- #173 — customer

## Permissions and access

### Permissions

- `storage`
- `webRequest`
- `webRequestBlocking`
- `<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).

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