# CarbonViz

> Your browsing climate impact, made visible.

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

## Overview

- **ID:** `carbonviz`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Stéphane Lecorney
- **Category:** other
- **Daily users:** 18
- **Rating:** 5.00 / 5 (5 ratings)
- **Version:** 1.0.4
- **Last updated:** 2025-09-02
- **First published:** 2021-12-01
- **Size:** 7.93 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/carbonviz/)

## Description

CarbonViz is a Firefox add-on that makes visible the impact of our digital activities on energy consumption and CO2 emissions. It provides live visualization of data consumption and associated CO2 emissions while browsing.

## Rankings

- #25,420 — Overall
- #127 — visibility
- #187 — associate

## Permissions and access

### Permissions

- `webRequest`
- `storage`
- `alarms`
- `notifications`

### Host permissions

- `<all_urls>`

### Content script matches

- `*`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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/carbonviz)