Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of World Clocks

World Clocks by Mason

Replace your new tab page with world clocks

0 (0 reviews)0 (0 reviews)
1 User1 User
You’ll need Firefox to use this extension
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
About this extension
Replaces your new tab page with pretty world clocks. Very heavily inspired by the now-defunct FIO/Figure-It-Out Chrome Extension.
  • Add/Remove timezones
  • Add custom names for each timezone
  • Perform time conversions right on the new tab page
  • Show both 12 and 24 hour time
Rated 0 by 0 reviewers
Sign in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
More information
Version
1.1.2
Size
453.04 KB
Last updated
2 months ago (Jun 2, 2025)
Related Categories
  • Appearance
  • Tabs
License
GNU General Public License v3.0 only
Version History
  • See all versions
Add to collection
Report this add-on
Release notes for 1.1.2
  • Updated font weights to better distinguish hours/minutes
More extensions by Mason
  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

Go to Mozilla’s homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.