800% Sound Volume version history - 5 versions
800% Sound Volume by DevLabs
800% Sound Volume version history - 5 versions
Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 1.4.1
Released 7 Jun 2026 - 34.88 kBWorks with firefox 109.0a1 and later- Fixed mute button conflict with video players
- Fixed audio going silent at 100% volume
- Redesigned popup UI for light and dark mode
- Added keyboard shortcuts: ↑↓ adjust volume, 0–8 jump to level, M mute
- Added Voice and Bass equalizer presets
- Minor UI cleanup
Source code released under BSD 2-Clause "Simplified" Licence
Older versions
Version 1.4.0
Released 7 Jun 2026 - 34.86 kBWorks with firefox 109.0a1 and laterSource code released under BSD 2-Clause "Simplified" Licence
Version 1.2.5
Released 12 Sep 2025 - 29.94 kBWorks with firefox 109.0a1 and laterv1.2.5 – Fixes & Improvements
Fixed: Volume boost now consistently applies and no longer resets on tab refresh or when opening new tabs.
Improved: Per-site volume settings are reliably persisted and automatically re-applied.
Enhanced: General stability improvements and cleaner background operation.Source code released under BSD 2-Clause "Simplified" Licence
Version 1.2.4
Released 24 Aug 2025 - 27.15 kBWorks with firefox 109.0a1 and laterAdded "Rate Us" and "Support" buttons to encourage user feedback and assistance.
Ensured all core features (volume boost, per-site settings, theme options, etc.) remain fully functional.Source code released under BSD 2-Clause "Simplified" Licence
Version 1.2.1
Released 20 Aug 2025 - 23.61 kBWorks with firefox 109.0a1 and laterSource code released under BSD 2-Clause "Simplified" Licence