Audio Extender EN
Alexey Kopkin · Firefox
Volume booster up to 600%, parametric equalizer and audio effects for any tab.
<all_urls>），意味着它可以读取你在任意站点的页面内容，包括已登录的页面。这是许多扩展正常工作的必要条件，但也值得你确认来源可信。
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简介
Too quiet video? Voices lost behind the music? Headphones that sound flat? Audio Extender makes any website sound better — YouTube, Twitch, podcasts, online courses, browser games and more.
🔊 Up to 600% louder
Raise the volume far beyond 100%. A built-in limiter keeps it clean: louder, but never crackling or distorted.
🎚 Studio-grade equalizer
Drag points on a live frequency curve to boost bass, bring out vocals or tame harsh highs. Prefer sliders? Switch to 10 or 31 bands. Ready-made presets (Bass Boost, Vocal, Podcast, Rock and more) — and save your own.
🎧 Headphone correction
Pick your model from the AutoEq database of thousands of headphones and hear them the way they should sound.
✨ Fix the sound with one switch
- Clear dialogue — understand voices in films and streams even when the music is loud
- Night mode — quiet scenes louder, explosions quieter
- Bass boost and stereo width — more punch and a wider stage
- Normalization — every video plays at a similar loudness
- Mono and left/right balance — for one earbud or hearing on one side
- Playback speed — faster lectures and podcasts without chipmunk voices
🎛 Every tab under control
The Mixer shows all tabs playing sound: set each one's volume, mute it, play one solo, or lower other tabs automatically while you watch something.
💾 Remembers every site
Settings are saved per site and stay after a browser restart.
🎨 Make it yours
5 themes (Neon, Cyber, Sunset, Aurora, Light), 6 languages, popup or sidebar, keyboard shortcuts: Alt+Shift+A open, Alt+Shift+↑/↓ volume, Alt+Shift+B on/off.
🔒 Private by design
No data collection, no ads, no analytics. All sound processing happens locally in your browser. The only network request: downloading the public AutoEq database when you search for your headphones.
Good to know
Firefox doesn't allow extensions on its own pages (settings, PDF viewer, addons.mozilla.org). DRM-protected audio (for example Spotify or Netflix) can't be changed by any extension — it keeps playing normally, just without effects.
Now on Firefox for Android!
- Works on phones and tablets: the same booster, equalizer and effects, sized for your finger
- Double-tap resets an equalizer point or slider
- Lighter on the battery on phones
- Requires Firefox 142 or newer
Open source (GPL-3.0): github.com/AlexeyKopkin/Audio-Extender
Enjoying it? Buy me a coffee ☕
Audio Extender 是做什么的
Audio Extender 是一款面向 Firefox 的影音图像类扩展，主要用来处理图片、调节音量、增强播放器功能。官方对它的介绍是：Volume booster up to 600%, parametric equalizer and audio effects for any tab.在Firefox 附加组件商店（AMO）上，它当前版本 0.5.1，评分 5（2 人评价），约 39 名用户。
适合什么人用
从功能定位看，Audio Extender 更适合经常在网页上看视频、听音乐或处理图片的用户。如果你平时只是偶尔遇到相关需求，用浏览器自带功能也能凑合；但如果这件事每天都发生，装一个专门处理它的扩展通常比手动操作省事得多。需要注意的是它作用于所有网站，装上后建议先观察一两天，确认不影响常用站点的正常使用。
怎么安装 Audio Extender
- 打开Firefox 附加组件商店（AMO）上的官方页面；
- 点「添加到浏览器」并确认权限提示；
- 装好后在扩展列表里固定图标，方便随时开关。
本站只做索引与介绍，安装包来自官方商店。如果商店页面提示当前地区不可用，说明该扩展未在你所在区域上架。
常见问题
Audio Extender 是免费的吗？
Audio Extender 在Firefox 附加组件商店（AMO）免费提供下载。它是浏览器扩展，装上就能直接用，不需要注册账号。
Audio Extender 安全吗？
它只申请了 0 项权限，范围比较克制，没有申请「读取所有网站数据」这种大权限。
Audio Extender 支持哪些浏览器？
当前收录的版本来自Firefox 附加组件商店（AMO），适用于 Firefox。同一个扩展在其他商店可能有对应版本，但功能与版本号不一定相同。
怎么卸载 Audio Extender？
在扩展管理页找到 Audio Extender，点移除即可。它在本地保存的设置会一起清掉，不会残留数据。
权限清单 来自 manifest.json 原文
站点访问 1
<all_urls>
接口权限 2
scriptingstorage