# Heero Video Enhancer

> Customise videos and images in real-time with Heero, a lightweight and intuitive tool that gives you control over YouTube and medias across the web.

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

## Overview

- **ID:** `heero`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** \[UN\]Leash
- **Category:** download-management,appearance,photos-music-videos
- **Daily users:** 31
- **Weekly downloads:** 10
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 1.9.45
- **Last updated:** 2026-08-07
- **First published:** 2026-04-03
- **Size:** 147 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/heero/)
- **Website:** [https://heero.pages.dev/](https://heero.pages.dev/)

## Description

<strong>Take control of your media</strong> with Heero, a sleek, compact side panel designed to <strong>enhance your viewing</strong> experience across the web, <strong>enhancing images</strong> and <strong>videos</strong> in HTML5 players, <strong>including YouTube</strong>.

🎨 <strong>Real-Time Enhancement</strong>
Fine-tune <strong>videos and images</strong> with <strong>brightness</strong>, <strong>contrast</strong>, <strong>saturation</strong> and <strong>sharpness</strong> adjustments.

🔍 <strong>Precision Viewing Tools</strong>
<strong>Magnifier</strong>: Zoom into specific details without losing context.
<strong>Rotation Control</strong>: Instantly fix awkwardly filmed content with a dedicated slider.
<strong>Playback speed</strong>: from frame-to-frame to 16x faster playback.
<strong>A/B Cue</strong>: loop your favorite parts of your videos.

🔊 <strong>Volume Booster</strong>
Push your <strong>audio beyond the limit</strong> with a built-in gain controller for <strong>improved listening</strong>.

⚡ <strong>YouTube Supercharged</strong>
<strong>Shorts</strong>: Watch Shorts in the standard, fully-featured video player.
<strong>High-quality</strong>: Heero automatically sets videos to the maximum available quality for you.
<strong>YouTube UI</strong>: Toggle the native UI off completely.
<strong>HQ Thumbnails</strong>: Instantly open the high-resolution thumbnail of the video you're currently watching.

🛠 <strong>Useful Tools</strong>
<strong>Presets</strong>: Allows you to save your favorite enhancements and access them easily later.
<strong>Screenshots</strong>: Take source quality screenshots in one click.
<strong>Arrow Navigation Everywhere</strong>: Lets you use your keyboard arrows to skip or go back 5 seconds even in players without native support.
<strong>Whiteboard:</strong> Draw directly over the screen to highlight or annotate content in real-time.
<strong>Force Cinema Mode</strong>: Strip away distractions for a focused, immersive viewing experience.
<strong>Video Downloader</strong>: Save your favorite videos from supported websites, now improved (YouTube not supported).
<strong>Video Recorder</strong>: When download is not supported, allows you to seamlessly record videos in source-quality.

⚙ <strong>Tailored to Your Workflow</strong>
Customise how Heero behaves: set the panel to open automatically, restrict it to YouTube, or use Manual Mode to activate the extension only when specifically requested.

Attibutions: Heero's icons were designed by many awesome people, and shared for free at <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/5796d5d30b6bfd375417d474a5c255b45e5e726fbf4468461807dff1a86c7e39/http%3A//Flaticon.com" rel="nofollow">Flaticon.com</a>. You can check them out with the links below:

<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/946ee16e2a6abc3842b3b4037c9fd01f95c276f5a8568291c2b1893998a2c0a9/https%3A//www.flaticon.com/free-icons/play-video" rel="nofollow">Play video icons created by Prosymbols Premium - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/c233f231741f62f6f34e3ade0768f92861ed7bb8511826e76745402984788565/https%3A//www.flaticon.com/free-icons/thumbnail" rel="nofollow">Thumbnail icons created by Icon mania - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/b60dc2c7ee25186861674e9c0118b7e68ceab06406cd9a8e259c22dcd71ecaed/https%3A//www.flaticon.com/free-icons/slowly" rel="nofollow">Slowly icons created by Freepik - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/15e3f7dd5edad0f23b815b9131ee86338baf53af3e8a6eccfc7bbad99e505f42/https%3A//www.flaticon.com/free-icons/rotate" rel="nofollow">Rotate icons created by Pixel perfect - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/a04ec90ee63aea271497471c1a4305d52dfb7dbfd2b11806b2269a1483b0ba94/https%3A//www.flaticon.com/free-icons/eye-password" rel="nofollow">Eye password icons created by sonnycandra - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/2a0d79d1f1ffbb93d2086a9b13df3606fb274b1e5df77e2f101791f13ba5d429/https%3A//www.flaticon.com/free-icons/screenshot" rel="nofollow">Screenshot icons created by Iamkikirizky - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/350cc963397a25030ef651d579ff4946f759438f56a4cfd9bd14e5def8a91b84/https%3A//www.flaticon.com/free-icons/download" rel="nofollow">Download icons created by Pixel perfect - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/0826c17b35a5bc46ccc28758a33545967bbcbb29579d4f4d4478ebb5dc746a69/https%3A//www.flaticon.com/free-icons/settings" rel="nofollow">Settings icons created by dmitri13 - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/ae9563b41d485c42e60227c439c1e37e954e2871166e454c2a857e8311dbd7cd/https%3A//www.flaticon.com/free-icons/saturation" rel="nofollow">Saturation icons created by sonnycandra - Flaticon</a>
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<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/ab609316cd12cceb76872b41ae08785a0e28cdd8e73d6ddc1c45aa2640d87e9a/https%3A//www.flaticon.com/free-icons/bright" rel="nofollow">Bright icons created by heisenberg_jr - Flaticon</a>
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<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/89ee8915047abe400a2cc3030ffec017c3d61646a134d43a41e5e46b43a16d22/https%3A//www.flaticon.com/free-icons/save" rel="nofollow">Save icons created by Yogi Aprelliyanto - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/c233f231741f62f6f34e3ade0768f92861ed7bb8511826e76745402984788565/https%3A//www.flaticon.com/free-icons/thumbnail" rel="nofollow">Thumbnail icons created by Hexagon075 - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/a4d8bb8151373865cbb2ee7c98545ba6d8a92fd0ad34d33ae1b869d6c8466cae/https%3A//www.flaticon.com/free-icons/draw" rel="nofollow">Draw icons created by Freepik - Flaticon</a>
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/cf076edc68f25259107f009ef391385c542ecb8e862e24321c48b57d3fb40d22/https%3A//www.flaticon.com/free-icons/computer" rel="nofollow">Computer icons created by Izwar Muis - Flaticon</a>
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## Rankings

- #20,020 — Overall
- #120 — enhance

## Permissions and access

### Permissions

- `storage`
- `contextMenus`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate 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/heero)