600% Sound Booster (Fixed) by LEFRIEND
Up to 600% volume boost. A remaster of the remaster of a dead add-on.
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About this extension
This add-on was originally deleted because it contained malicious code. After it got taken down, someone remade it, and made it open-source. However, said version didn't really work with websites such as soundcloud due to server limitations.
This version fixes that issue, being able to boost any audio from any website!
Shoutout: https://addons.mozilla.org/en-US/firefox/addon/600-sound-volume-privacy/
This version fixes that issue, being able to boost any audio from any website!
Shoutout: https://addons.mozilla.org/en-US/firefox/addon/600-sound-volume-privacy/
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.5.4
- Size
- 114.06 KB
- Last updated
- 8 days ago (Mar 13, 2026)
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- Version History
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