# Week Calculator

> Calculate week numbers and date ranges with Sunday as the start of the week. The purpose is to provide users with a simple, easy to access, and visualize week number tracker. What sets apart from others is able to visually check future weeks.

Canonical page: [https://chrome-stats.com/d/week-calculator](https://chrome-stats.com/d/week-calculator)

## Overview

- **ID:** `week-calculator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Charles
- **Category:** social-communication
- **Daily users:** 1
- **Version:** 3.0.1
- **Last updated:** 2026-04-24
- **First published:** 2025-06-03
- **Size:** 17 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/week-calculator/)

## Description

This is just a prototype tool that keeps track of the current week number for users. Other interfaces were not to my liking.

## Rankings

- #118,483 — Overall

## Permissions and access

### Permissions

- `activeTab`
- `storage`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

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

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/week-calculator)