Carbonalyser

Name: Carbonalyser
Rating: 4.5455 (44 reviews)
Author: The Shift Project

Allows to visualize the electricity consumption and greenhouse gases (GHG) emissions that your Internet browsing leads to.

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Features & Capabilities

Carbonalyser is a Chrome extension that visualizes the electricity consumption and greenhouse gas (GHG) emissions caused by your Internet browsing activities. Using data volume measurements and The Shift Project's "1byte" model, it calculates the energy used and resulting GHG emissions based on your selected region's electrical mix. This allows users to see how their digital behavior impacts climate change and natural resources.

Features include starting and stopping real-time analysis, resetting data, ranking the top websites by data volume, and comparing browsing emissions to smartphone charging and car driving. Carbonalyser respects user privacy by processing all data locally without transmitting any information. Source code is openly available for transparency and contribution. This tool encourages responsible digital use and environmental awareness.

User Growth & Download Statistics

Add-on Privacy & Security AI Education

By:

Daily users:

Rating:

Version:

1.2.0 Last updated: 2020-01-10

Version code:

4938665

Creation date:

2019-06-27

Risk:

Permissions:

Size:

73.43KB

Email:

co*****@theshiftproject.org

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 1,739 ▼ 14

Other rankings

#184 in Social & Communication ▼ 2

#194 in Web Development ▼ 1

#280 in Other extensions ▼ 7

#20 in lead keyword 20

#111 in internet keyword 52 ▲ 1

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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:

The Shift Project

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/carbonalyser/

Email:

co*****@theshiftproject.org

User Reviews

Overall, users find Carbonalyser functional and useful, offering a fresh way to view browsing activity and its carbon footprint. Positive feedback across languages highlights its potential and practical usability. However, multiple reviews cite issues: the analysis stops when the browser closes and doesn’t auto-restart, limiting long-term studies; the dark-theme icon is hard to find; concerns about calculation accuracy; lack of data persistence or easy long-term data saving; and limited cross-device data consolidation. Users request enhancements like per-period analysis, network-specific views, data export, and multi-device syncing, and welcome ongoing improvements.

Pros

Functional and usable in Firefox.
Provides a fresh perspective on browsing activity and the associated carbon footprint.
Generally positive reception across languages and users, seen as a promising and useful addition.
Suggests potential long-term tracking (per day/week/month) and improvement insights.
Helps users reflect on their browsing habits.

Cons

Analysis stops when the browser closes and does not auto-restart, hindering long-term analyses.
Icon is difficult to locate on dark themes/UI visibility issues.
Questions about the accuracy of calculations or potential overestimation.
Lacks convenient data persistence for long-term studies and saving data.
Limited cross-device data consolidation and syncing (multi-device support).

Recent reviews

it's good

by Gw*****, 2025-12-16

by 退出*****, 2025-03-23

by 天灭*****, 2025-02-10

View all user reviews ›

Is Carbonalyser 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.

Carbonalyser requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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.

Carbonalyser 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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