Coolant — Tab Thermal Optimizer

Name: Coolant — Tab Thermal Optimizer
Author: Farbod

Reduces CPU/GPU load from heavy animations, backdrop-filters, blend-modes and background videos on any tab — with a built-in performance panel to verify the savings live.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-09-06

Version:

1.0.1

Last updated: 2026-08-22

Features & Capabilities

Coolant watches every tab for CPU/GPU-heavy visual effects — infinite CSS animations, backdrop-filter blur/glass effects, blend-modes, and autoplaying background videos — and suppresses them once they exceed a configurable size/duration threshold, without altering page content or layout. Features: • Three modes (Normal / Eco / Ultra) to control how aggressively effects are suppressed • Per-site enable/disable toggle • Live stats: how many elements/animations/videos are currently being suppressed on the active tab • Optional Debug Mode: a real, measured (not estimated) CPU-overhead report across all open tabs • Also offers an optional codec-preference hook that discourages VP9/HEVC playback in favor of lighter-weight codecs on CPU-constrained systems — automatically disabled on DRM-protected streaming sites (Netflix, Spotify, Disney+, Hulu, HBO Max, Prime Video, Twitch, Apple). All data stays on your device. Coolant does not collect, transmit, or sell any personal data.

User Growth & Download Statistics

Add-on

By:

Farbod

Daily users:

Version:

1.0.1 Last updated: 2026-08-22

Version code:

6423917

Creation date:

2026-08-19

Firefox add-on GUID:

{867ae1e8-6bd4-4baa-b7d3-25ad72545e83}

Firefox add-on numeric ID:

3056711

Firefox on Android:

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

68.56KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-06

Compare stats and ranking:

Ranking

# 92,208 ▼ 843

Other rankings

#86 in optimize keyword 15 ▲ 1

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:

Farbod

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/coolant-tab-thermal-optimizer/

Is Coolant — Tab Thermal Optimizer 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.

Coolant — Tab Thermal Optimizer 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.

Coolant — Tab Thermal Optimizer is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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