Spoof Timezone

Name: Spoof Timezone
Rating: 3.5493 (71 reviews)
Author: Joue

By: Joue

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

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Features & Capabilities

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.

User Growth & Download Statistics

Add-on Privacy & Security

By:

Joue

Daily users:

2,356 -211

Rating:

3.55

(71)

Version:

0.4.9 Last updated: 2025-12-17

Version code:

6100368

Creation date:

2018-01-21

Risk:

Permissions:

Host permissions:

*://*/*

Size:

182.59KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 1,949 ▼ 109

Other rankings

#351 in Privacy & Security ▼ 17

#1 in spoon keyword 1 ▲ 1

#12 in airtime keyword 0 ▼ 1

#36 in value keyword 19

#41 in define keyword 10 ▼ 1

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Other platforms

Spoof Timezone (v0.4.9)

50,000 3.69

(45)

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Joue

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/spoof-timezone/

Website:

https://add0n.com/spoof-timezone.html

Permission Change History

2025-02-18: Version 0.3.4 → 0.4.2

Add Host permissions: *://*/*

Add Permissions: scripting

Remove Permissions: *://*/*

User Reviews

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.

Recent reviews

by Te*****, 2026-03-23

I gave 5 stars because this app resolved my problem. It was hard to start to use but at the end I can check my work portal and it shows time correctly

by oz*****, 2026-03-09

This extension is extremely useful and the developer is a really nice person and cares about potential bugs being reported.

by Fa*****, 2025-12-17

View all user reviews ›

Is Spoof Timezone Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Spoof Timezone requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Spoof Timezone is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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