# Topic Mastery Heatmap CM

> Visualizes topic mastery using an interactive heatmap based on learning behavior.

Canonical page: [https://chrome-stats.com/d/topic-mastery-heatmap-cm](https://chrome-stats.com/d/topic-mastery-heatmap-cm)

## Overview

- **ID:** `topic-mastery-heatmap-cm`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Yassu
- **Category:** other
- **Version:** 1.3
- **Last updated:** 2026-08-05
- **First published:** 2026-08-02
- **Size:** 16 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/topic-mastery-heatmap-cm/)

## Description

Visualizes topic mastery using an interactive heatmap based on learning behavior.

## Rankings

- #141,534 — Overall
- #30 — topic

## Permissions and access

### Permissions

- `tabs`
- `storage`
- `notifications`
- `activeTab`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/topic-mastery-heatmap-cm)