# Spoof Timezone

> This extension alters browser timezone to a random or user-defined value.

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

## Overview

- **ID:** `spoof-timezone`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Joue
- **Category:** privacy-security
- **Daily users:** 2,586
- **Weekly downloads:** 669
- **Rating:** 3.51 / 5 (72 ratings)
- **Version:** 0.5.0
- **Last updated:** 2026-07-01
- **First published:** 2018-01-21
- **Size:** 183 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/spoof-timezone/)
- **Website:** [https://add0n.com/spoof-timezone.html](https://add0n.com/spoof-timezone.html)

## Description

Spoof Timezone is a privacy-focused Chrome extension that alters your browser's timezone as seen by JavaScript on websites. By allowing you to specify a preferred timezone or select random timezones, it helps safeguard your real timezone from exposure, preventing tracking through browser fingerprinting techniques. The extension includes an easy toolbar toggle to enable or disable the feature and a convenient context menu for testing the currently visible timezone. Ideal for users seeking enhanced online anonymity and control over their browsing environment.

## Rankings

- #1,861 — Overall
- #343 — Privacy & Security
- #1 — spoon
- #11 — airtime
- #37 — value
- #41 — define

## Permissions and access

### Permissions

- `storage`
- `scripting`
- `webNavigation`
- `contextMenus`
- `notifications`

### Host permissions

- `*://*/*`

## 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).

## Review summary

A broadly useful add-on for testing across time zones, it correctly shows spoofed times and is valued for development use. The random time zone feature helps quick testing, and the developer seems responsive. However, multiple reviews warn that spoofing can break some sites (including LAN sites), cause hangs, or fail to work consistently, and there’s no automatic switching. Site-specific caveats and manual adjustments are often required.

### Pros

- It resolves the time display problem on portals/websites by spoofing the timezone, showing the correct time.
- Very useful for development and testing, and the developer is responsive to bug reports.
- Includes a convenient 'Pick a random time zone' button for easy testing.
- Generally effective for many sites and use cases.

### Cons

- Spoofing can cause some websites to misbehave, display incorrect data, or behave inconsistently.
- Aggressive spoofing can cause websites and services to hang or crash.
- It can break local LAN sites and may require an exception list.
- Some users report that it does not work or fails to spoof in their setup.
- There is no automatic time zone switching; manual steps or IP checks are often needed.

## Similar extensions and apps

- [Spoof Geolocation](https://chrome-stats.com/d/spoof-geolocation) — 5,009 users, 3.82 / 5
- [Time Zone Spoofer](https://chrome-stats.com/d/time-zone-spoofer) — 16 users, 3.00 / 5
- [Change Timezone (Time Shift)](https://chrome-stats.com/d/change-timezone-time-shift) — 1,697 users, 2.82 / 5
- [Teleport | Timezone & Locale Spoofer](https://chrome-stats.com/d/teleport-spoofer) — 51 users
- [User-Agent Switcher and Manager](https://chrome-stats.com/d/user-agent-string-switcher) — 83,696 users, 4.08 / 5
- [TimezoneEditor](https://chrome-stats.com/d/timezoneeditor) — 18 users, 2.67 / 5
- [Spoof Me](https://chrome-stats.com/d/spoof-me) — 3 users, 5.00 / 5
- [Change Timezone 88](https://chrome-stats.com/d/change-timezone-88) — 16 users, 1.00 / 5
- [Custom Timezone Offset](https://chrome-stats.com/d/custom-timezone-offset) — 33 users, 4.50 / 5
- [Agent Spoofer](https://chrome-stats.com/d/agent-spoofer) — 57 users
- [GeoSpoof: Spoof Geolocation & Timezone](https://chrome-stats.com/d/geo-spoof) — 3,086 users, 4.71 / 5
- [Fixed Timezone Switcher](https://chrome-stats.com/d/fixed-timezone-switcher) — 2 users

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