QntmBlock - Youtube Ad Blur by quantumbrowser.dev
Blurs, mutes, and speeds up YouTube ads without blocking them.
ExperimentalExperimental
Available on Firefox for Android™Available on Firefox for Android™
1 User1 User
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About this extension
Qntm Block detects YouTube ads through CSS classes, DOM changes, and smart heuristics. When an ad starts, it automatically mutes the audio, applies a gentle blur, and speeds playback so interruptions pass quickly—all handled entirely in JavaScript.
From the popup menu you can fine-tune everything: set ad-playback speed, adjust blur strength, toggle muting, or enable experimental detection methods. Qntm Block is designed to avoid hurting creators’ revenue while keeping your viewing smooth and distraction-free.
Lightweight and privacy-friendly, Qntm Block runs fully in your browser with no external servers or tracking. Enjoy YouTube with fewer disruptions while still supporting content creators.
PS: YouTube undected :)
From the popup menu you can fine-tune everything: set ad-playback speed, adjust blur strength, toggle muting, or enable experimental detection methods. Qntm Block is designed to avoid hurting creators’ revenue while keeping your viewing smooth and distraction-free.
Lightweight and privacy-friendly, Qntm Block runs fully in your browser with no external servers or tracking. Enjoy YouTube with fewer disruptions while still supporting content creators.
PS: YouTube undected :)
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Permissions and dataLearn more
Required permissions:
- Access your data for www.youtube.com
Optional permissions:
- Access your data for www.youtube.com
More information
- Add-on Links
- Version
- 0.3.0
- Size
- 1.34 MB
- Last updated
- 15 hours ago (3 Oct 2025)
- Related Categories
- Licence
- Apache Licence 2.0
- Version History
- Add to collection
Release notes for 0.3.0
Update v0.3
Installation
About Chromium (Chrome Web Store)
I’ve decided not to publish the extension on the Chrome Web Store. The required developer registration fee just to list an extension feels absurd to me, and I’m not willing to pay it. In my view, this pay-to-publish approach reflects poorly on the Chromium ecosystem.
That is all from me. Enjoy the extension!
License
Apache License 2.0
Copyright 2025 Quantum Browser
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
- All tests of experimental features are now complete.
- Significant performance and detection improvements.
- A major update is coming soon.
- AI-powered automatic YouTube scanner is in development.
- QntmBlock is now approved on the Firefox Add-ons Marketplace—thanks to the Firefox team!
Installation
- Firefox: Install from Add-ons
- Chrome/Chromium: Not available on the Chrome Web Store (more about that is below), but you can install manually:
- Download or clone this repository.
- Open Chrome and go to
chrome://extensions. - Enable "Developer mode" (top right).
- Click "Load unpacked" and select the extension folder.
- (Optional) For debugging, you can add the debug addon from the repo in the same way.
About Chromium (Chrome Web Store)
I’ve decided not to publish the extension on the Chrome Web Store. The required developer registration fee just to list an extension feels absurd to me, and I’m not willing to pay it. In my view, this pay-to-publish approach reflects poorly on the Chromium ecosystem.
That is all from me. Enjoy the extension!
License
Apache License 2.0
Copyright 2025 Quantum Browser
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.