Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
Log in
Preview of YT Block Optimized

YT Block Optimized by USForeignPolicy

Block videos, comments, channels and much more!

Available on Firefox for Android™Available on Firefox for Android™
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file
Scan the QR code to open this extension in Firefox for Android

Extension Metadata

About this extension
Blacklist words and phrases (regex supported).
• Block channels, videos, comments, posts, and playlists.
• Block videos by title, categories, tags, description*, duration, link, ID, and published time.
• Block shorts, live, premiere, and age-restricted videos.
• Block channels and whitelist channels.
• Block comments and posts by their content or by channel.
• Block playlists by channel, title, and even mix playlists.
• Toggleable block overlays.
• Password protection.
• Many more!

The improvements are:
Aho–Corasick indexing
Constant-time exact matching
Multi-level caching
Batched API traffic
Cancellation and prioritization
Off-main-thread regex
Incremental page processing
Visibility-aware scheduling
Navigation-aware invalidation
early video-ID blocking
Bounded memory
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for sites in the youtube.com domain
  • Access your data for sites in the googleapis.com domain

Optional permissions:

  • Download files and read and modify the browser’s download history
  • Display notifications to you

Required data collection, according to the developer:

  • Authentication information
  • Website activity
Learn more
More information
Add-on Links
  • Copy add-on ID
Version
6.0.2.10
Size
985.68 KB
Last updated
16 days ago (Oct 21, 2026)
Related Categories
  • Appearance
  • Photos, Music & Videos
  • Games & Entertainment
License
MIT License
Version History
  • See all versions
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version. Android is a trademark of Google LLC.