Week number extension

Name: Week number extension
Rating: 5 (3 reviews)
Author: Simen Eilevstjønn

Do you find people who just have to use week numbers annoying? Week number extension is your tool for understanding their language.

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Features & Capabilities

The Week Number Extension is a handy Chrome tool designed to help you quickly get the current ISO week number at a glance. If you ever find people using week numbers confusing or need to convert between week numbers and actual calendar dates, this extension is your perfect companion. It provides instant conversion from week number and year to dates and also allows reverse lookup from dates to week numbers.

Ideal for professionals, planners, or anyone working with week-based schedules, the extension simplifies understanding the ISO week system, making communication clearer and scheduling easier. By integrating seamlessly into your Chrome browser, Week Number Extension enhances productivity by removing ambiguity from week-related references.

User Growth & Download Statistics

Add-on

By:

Simen Eilevstjønn

Daily users:

Rating:

5.00

(3)

Version:

1.3.1 Last updated: 2021-01-04

Version code:

5158666

Creation date:

2020-02-04

Risk:

Size:

95.31KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-21

Compare stats and ranking:

Ranking

# 14,405 ▼ 7

Other rankings

#2 in week keyword 9 #15 in number keyword 49 #202 in extension keyword 80 ▲ 3#219 in extension guard keyword 54 ▲ 2

Other platforms

Week number extension (v1.4.1)

924 5.00

(2)

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:

Simen Eilevstjønn

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/week-number-extension/

User Reviews

by 远离*****, 2025-04-21

by 退出*****, 2025-03-16

Finally! Super annoying hahaha. Your the best!

by Fi*****, 2021-10-19

View all user reviews ›

Is Week number extension 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.

Week number extension does not require any sensitive permissions.

Risk impact analysis details

Low This permission has no access or impact on the user's system or data, thus carrying no risk.

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.

Week number extension has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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