Heero Video & Image Enhancer Firefox

Heero Video & Image 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.

Features & Capabilities

Take control of your media with Heero, a sleek, compact side panel designed to enhance your viewing experience across the web, enhancing images and videos in HTML5 players, including YouTube. ‎ ‎ 🎨 Real-Time Enhancement Fine-tune videos and images with brightness, contrast, saturation and sharpness adjustments. ‎ ‎ 🔍 Precision Viewing Tools Magnifier: Zoom into specific details without losing context. Rotation Control: Instantly fix awkwardly filmed content with a dedicated slider. Playback speed: from frame-to-frame to 16x faster playback. ‎ ‎ 🔊 Volume Booster Push your audio beyond the limit with a built-in gain controller for improved listening. ‎ ‎ ⚡ YouTube Supercharged Shorts: Watch Shorts in the standard, fully-featured video player. High-quality: Heero automatically sets videos to the maximum available quality for you. YouTube UI: Toggle the native UI off completely. HQ Thumbnails: Instantly open the high-resolution thumbnail of the video you're currently watching. ‎ ‎ 🛠️ Useful Tools Presets: Allows you to save your favorite enhancements and access them easily later. Screenshots: Take source quality screenshots in one click. Arrow Navigation Everywhere: Lets you use your keyboard arrows to skip or go back 5 seconds even in players without native support. Whiteboard: Draw directly over the screen to highlight or annotate content in real-time. Force Cinema Mode: Strip away distractions for a focused, immersive viewing experience. Video Downloader: Save your favorite videos from supported websites, now improved (YouTube not supported). Video Recorder: When download is not supported, allows you to seamlessly record videos in source-quality. ‎ ‎ ⚙️ Tailored to Your Workflow 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 Flaticon.com. You can check them out with the links below:

Play video icons created by Prosymbols Premium - Flaticon Thumbnail icons created by Icon mania - Flaticon Slowly icons created by Freepik - Flaticon Rotate icons created by Pixel perfect - Flaticon Eye password icons created by sonnycandra - Flaticon Screenshot icons created by Iamkikirizky - Flaticon Download icons created by Pixel perfect - Flaticon Settings icons created by dmitri13 - Flaticon Saturation icons created by sonnycandra - Flaticon Contrast icons created by Smartline - Flaticon Bright icons created by heisenberg_jr - Flaticon Clear icons created by LAFS - Flaticon Save icons created by Yogi Aprelliyanto - Flaticon Thumbnail icons created by Hexagon075 - Flaticon Draw icons created by Freepik - Flaticon Computer icons created by Izwar Muis - Flaticon Search icons created by Freepik - Flaticon Megaphone icons created by Freepik - Flaticon Download icons created by Cuputo - Flaticon Swipe left icons created by Shahid-Mehmood - Flaticon Eraser icons created by Those Icons - Flaticon Drag and drop icons created by Royyan Wijaya - Flaticon Tick icons created by edt.im - Flaticon Preset icons created by Designspace Team - Flaticon Global icons created by Freepik - Flaticon Caption icons created by IconKanan - Flaticon Infinity icons created by Laisa Islam Ani - Flaticon Expand icons created by edt.im - Flaticon Sharp icons created by Freepik - Flaticon Flip icons created by Freepik - Flaticon External link icons created by Fathema Khanom - Flaticon

User Growth & Download Statistics

Manifest V3 Add-on
By:
[UN]Leash
Daily users:
18 5
Rating:
5.00
(1)
Version:
1.9.30 Last updated: 2026-05-29
Version code:
6283890
Creation date:
2026-04-03
Risk:
Moderate risk impact High risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • <all_urls>
Size:
135.11KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

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:
[UN]Leash
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/heero/
Website:
https://heero.pages.dev/

User Reviews

Please add the website www.1tv.ru.
by An*****, 2026-05-15
View all user reviews ›

Is Heero Video & Image Enhancer 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.

Heero Video & Image Enhancer requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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.

Heero Video & Image Enhancer 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.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
  • Good **** ********* *** **** **** *******
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