Do you find people who just have to use week numbers annoying? Week number extension is your tool for understanding their language.
Week number extension gives you the current ISO week number in an instant! It also allows you to convert from week number and year to dates and vice versa.

Install

• License: MIT License
• Weekly downloads: 2
• Average daily users: 53
• Rating: 5/5 of 3 ratings
• Created: 2020-02-04 21:01:16
• Last updated: 2021-01-04 12:10:40
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/week-number-extension/
• API: {4640c8aa-ab9a-4a75-90fb-454b99004652}