Spoof Timezone

Spoof Timezone

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

What is Spoof Timezone?
"Spoof Timezone" is a Firefox add-on designed to protect your privacy by spoofing your current timezone. It provides websites with a user-defined or random timezone instead of the real one, making it harder for tracking scripts to use this information for browser fingerprinting. The add-on also offers an option to check the visible timezone and a toolbar button to easily enable or disable the function.
By: Joue
Rating: 3.39 (59)
Version: 0.3.4 (Last updated: 2022-10-31)
Creation date: 2018-01-21
Weekly download count: 373
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • storage
  • *://*/*
  • webNavigation
  • contextMenus
  • notifications
Size: 144.30K
URLs: Website
Stats date:

Other platforms

Spoof Timezone
Spoof Timezone (v0.4.1)
3.73 (37) 40,000
Not available on Edge
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This extension spoofs the current timezone provided by JavaScript to web pages. You can specify the preferred timezone in the options page and the add-on makes sure your real timezone is protected (invisible by websites). There is an option to ask the extension to provide random timezones as well. This option is useful to prevent fingerprinting scripts from using your current timezone as an element to uniquely identify your browser.


  1. You can enable/disable the extension using the provided toolbar button.
  2. To test the visible timezone use the right-click context menu item
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Has all the options needed
  • Works flawlessly
  • Useful for avoiding fingerprinting
  • Does not work on certain websites
  • No automatic time zone change
  • No allow list for specific websites
Most mentioned
  • No automatic time zone change
  • Does not work on certain websites
  • Need for an allow list for specific websites
  • Settings not saved after browser restart
Recent reviews

работает, но времяные зоны меняются не автоматически. P.S.: он меняет зоны в зависимости от вашего ip
View all user reviews
Risk impact

Spoof Timezone is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Spoof Timezone if you trust the publisher.

Risk likelihood

Spoof Timezone has earned a fairly good reputation and likely can be trusted.

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