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Per-Tab Volume Control

Per-Tab Volume Control EN

Harrison Jones · Firefox

Controls audio volume for individual tabs up to 500%

4.6/5 20 人评分 3千用户 v5.6.2当前版本
权限提示 该扩展申请访问所有网站(<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。

简介

Take full control of your browser's audio. Whether a video is too quiet, poorly mixed, too loud in places, or you want better control across multiple tabs, Per-Tab Volume Control gives you the tools to fix it instantly.

🚀 Key Features
- 🔊 500% Volume Boost: Blast past the system limit. Perfect for quiet YouTube videos, low-volume podcasts, online meetings, and streams that are just too faint.
- 🎛 Smart Audio Compressor: Automatically balances audio levels. It lowers loud explosions and boosts quiet dialogue, so you do not have to constantly reach for the volume knob.
- 🔇 Mute, Mono and L/R Balance: Instantly mute the current tab, force mono audio, or shift sound left and right directly from the main popup.
- ⌨ Keyboard Shortcuts: Adjust volume, reset volume, mute or unmute, and toggle compressor on the active tab without opening the popup.
- 🎯 Cross-Tab Audio Control: Manage volume, mute, and compressor settings for all tabs with active audio from one convenient panel.
- 🌍 Global Audio Defaults: Set Compressor and Mono defaults for newly opened or reloaded pages, and use Global L/R Balance across open tabs and new pages while enabled.
- 🗣 Multilanguage Support: Switch the popup language from Settings: English, Spanish, German, French, Russian, or Simplified Chinese.
- ✅ Per-Tab Isolation: Adjust one tab without affecting the others. Listen to music in the background while watching a tutorial at a different volume.
- 🌐 Broad Compatibility: Works on most websites with HTML5 audio and video, including YouTube, Twitch, Spotify, Netflix, and more.
- 🔒 Privacy First: Runs 100% locally on your machine. No tracking, no data collection, no ads.

💡 How to Use the Audio Compressor
Think of the compressor as an automatic volume assistant. It smooths out the difference between the loudest and quietest parts of a video, making quiet dialogue easier to hear without being blasted by sudden loud sounds.

Turn it On: Toggle the Compressor switch in the popup.

Threshold (Sensitivity):
- Lower sensitivity (for example, -10dB): Compression only kicks in for the loudest peaks, leaving most audio untouched.
- Higher sensitivity (for example, -40dB): Compression reacts to much more of the audio, helping with whispering dialogue or inconsistent podcast levels.
- Default (-18dB): A balanced starting point for most content.

Ratio (Strength):
- Low (2:1): Gentle, subtle leveling with a more natural sound.
- Medium (6:1 - Default): Balanced compression for everyday listening.
- High (12:1): Strong limiting that pulls loud and quiet sounds closer together. Great for late-night watching.

🔒 Privacy and Permissions
This extension prioritizes your privacy. It runs 100% locally on your machine and does not collect, store, or transmit any browsing data.

Why "Access your data for all websites"?
You may see a permission warning asking to "Access your data for all websites". This is not used to track you. It is required for the extension's always-on features:
- Seamless Player Sync: Automatically detects media players as soon as you open a tab, helping the popup stay in sync with the page.
- Instant Control: Lets the extension work immediately without manually activating it on every tab.

Is this permission mandatory?
No. If you prefer stricter privacy, you can restrict the extension's access in your browser settings.
- If Enabled (Default): The extension works automatically on every tab.
- If Disabled: The extension becomes click-to-activate and will only work after you manually open it on that page.

Per-Tab Volume Control 是做什么的

Per-Tab Volume Control 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:Controls audio volume for individual tabs up to 500%在Firefox 附加组件商店(AMO)上,它当前版本 5.6.2,评分 4.6(20 人评价),约 3,020 名用户。

适合什么人用

从功能定位看,Per-Tab Volume Control 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 Per-Tab Volume Control

  1. 打开Firefox 附加组件商店(AMO)上的官方页面;
  2. 点「添加到浏览器」并确认权限提示;
  3. 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

Per-Tab Volume Control 是免费的吗?

Per-Tab Volume Control 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。

Per-Tab Volume Control 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。

Per-Tab Volume Control 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 Per-Tab Volume Control?

在扩展管理页找到 Per-Tab Volume Control,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 4

  • activeTab
  • scripting
  • storage
  • tabs

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