YouTube Guardian

About

YouTube Guardian — Block Non-Educational Channels

  Take full control of your YouTube experience. YouTube Guardian lets you build a personal whitelist of educational channels and blocks everything else — so you (or your family) only watch
   content that matters.

  Whether you're a student trying to stay focused, a parent managing screen time, or anyone who wants YouTube to be a learning tool rather than a distraction, YouTube Guardian puts you in
  charge.

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  How it works

  When you open a YouTube video, YouTube Guardian instantly checks the channel against your approved list. If the channel is not on your whitelist, the video is blocked before it plays —
  no 10-second previews, no accidental autoplay. Simply add the channels you trust and everything else is blocked automatically.

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  Key Features

  🛡️ Channel Whitelist
  Add channels by name, @handle, or YouTube URL. Only whitelisted channels are allowed to play. All other channels are blocked with a clear overlay explaining why.

  ⚡ Block YouTube Shorts
  Optionally disable YouTube Shorts entirely with a single toggle. Any visit to a /shorts/ URL is immediately blocked and redirected.

  🔒 Password Lock
  Protect your settings with a password. Once enabled, adding or removing channels, disabling blocking, and changing settings all require the password — making it tamper-proof for shared
  devices and families.

  📋 Import & Export
  Manage large whitelists easily. Import a list of channels in bulk by pasting names or handles, and export your list at any time to back it up or share it.

  🚀 Instant Blocking
  Built to be fast. The video is paused the moment YouTube starts navigating — no playback window before the block appears.

  🔁 Real-time Sync
  Changes to your whitelist take effect immediately across all open YouTube tabs — no refresh needed.

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  Privacy First

  YouTube Guardian stores your whitelist and settings entirely within your browser using Firefox's built-in storage. No data is ever sent to any external server. No analytics, no tracking,
   no accounts required.

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  Getting Started

  1. Install the extension
  2. Click the shield icon in your toolbar
  3. Open Manage Channels and add your first educational channel
  4. Visit any YouTube video — channels not on your list will be blocked instantly

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  Perfect for students, parents, educators, and anyone who wants YouTube to work for them — not against them.