# User-Agent Modifier

> edit user-agent string quickly and easily

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

## Overview

- **ID:** `user-agent-modifier`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** dowin
- **Category:** other
- **Daily users:** 7
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.1
- **Last updated:** 2020-03-25
- **First published:** 2020-03-25
- **Size:** 107 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/user-agent-modifier/)

## Description

User-Agent Modifier is a Firefox add-on that provides a convenient tool for editing user-agent strings. With this add-on, you can quickly modify the user-agent for any web request, as well as the window.navigator.userAgent value.

## Rankings

- #38,408 — Overall
- #55 — agent
- #74 — modify
- #113 — string
- #118 — agenda

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `webNavigation`
- `webRequest`
- `webRequestBlocking`
- `<all_urls>`
- `*://*/*`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low 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 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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- [UserAgent & Misc Headers](https://chrome-stats.com/d/useragent-misc-headers) — 1 users

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