# Open Headers

> Your existing Web DevToolkit, inside a browser extension. Modify live browser requests. Manage API Collections. Team Collaboration.

Canonical page: [https://chrome-stats.com/d/open-headers-backup](https://chrome-stats.com/d/open-headers-backup)

## Overview

- **ID:** `open-headers-backup`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Removed
- **Publisher:** OpenHeaders
- **Daily users:** 4
- **Weekly downloads:** 3
- **Version:** 2026.7.11
- **Last updated:** 2026-07-21
- **First published:** 2025-04-21
- **Size:** 5.71 MB
- **Data as of:** 2026-07-25
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/open-headers-backup/)
- **Website:** [https://openheaders.io](https://openheaders.io/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/open-headers-backup/privacy/](https://addons.mozilla.org/firefox/addon/open-headers-backup/privacy/)

## Description

Your existing Web DevToolkit inside a browser extension.
<ul><li>Modify live browser requests. Manage API Collections. Team Collaboration</li><li>Work offline -&gt; Auto-sync when back online</li><li>Chain &amp; Schedule API Requests</li><li>Front-end and back-end inside the browser extension: no other tool on the market ships this</li><li>Local-first: no account, no cloud</li></ul>
Our vision: We provide a platform where everyone can use local tools to generate their own local data and own it, not a cloud vendor middleman.

Everything is free to use and free to self-host. Like it should be.

## Permissions and access

### Permissions

- `storage`
- `alarms`
- `declarativeNetRequest`
- `declarativeNetRequestWithHostAccess`
- `declarativeNetRequestFeedback`
- `tabs`
- `webRequest`
- `webRequestBlocking`
- `webNavigation`
- `activeTab`
- `scripting`
- `cookies`
- `browsingData`
- `identity`
- `proxy`

### Host permissions

- `<all_urls>`
- `file:///*`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension is not longer available in the store

> 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/open-headers-backup)