Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Blue Blocker

Blue Blocker by Liquid Nitrogen

Blocks all Twitter Blue verified users on twitter.com

4.1 (136 reviews)4.1 (136 reviews)
6,759 Users6,759 Users
You'll need Firefox to use this extension
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
nintendo parody account auto-blocked for purchasing Twitter Bluetesla parody account auto-blocked for purchasing Twitter Bluescreenshot of the addon popup menu from v0.2.6dril tweeted about the extension on chrome
About this extension
Just install and say goodbye to all the paid blue checkmarks!

By default, Blue Blocker does not block users you follow or follow you who have purchased Twitter Blue. You can change this and other settings from the extension context menu found by clicking the extension icon in your browser's toolbar.

Features:
- Internal queue allows users to be blocked in the background without hitting twitter's API limits
- Avoid blocking celebs and influencers who were given Twitter Blue against their will
- Block anyone that promotes a tweet and supports this nightmare platform
- Change the speed users are blocked to avoid API limits
- Sync between tabs means that you can have dozens of tabs open without needing to worry
- Simple settings menu, skip blocking people you follow or even affiliates
- Feel bad about blocking? You can mute instead!
- Optional messages tell you who you've blocked and even allow you to unblock them- and flag them to not be blocked again
- Supports every major location tweets show up
- Search Results
- Tweet replies and threads
- For You and your home timeline
- User Pages
- Optionally also block users with NFT avatars

Endorsed by @dril!

Support or contribute to Blue Blocker's development on GitHub: https://github.com/kheina-com/Blue-Blocker

This addon uses your twitter/x cookies and headers to block users via the twitter/x API. View the privacy policy for more information.
Developer comments
Please use the GitHub repo to report bugs: https://github.com/kheina-com/Blue-Blocker/issues
Rated 4.1 by 136 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
94
4
11
3
5
2
9
1
17
Read all 136 reviews
Permissions and dataLearn more

Required permissions:

  • Access your data for sites in the twitter.com domain
  • Access your data for sites in the x.com domain
  • Access your data for twitter.com
  • Access your data for x.com
More information
Add-on Links
  • Homepage
  • Support Email
Version
0.4.17
Size
86.94 KB
Last updated
2 months ago (Jun 2, 2025)
Related Categories
  • Social & Communication
License
Mozilla Public License 2.0
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • content blocker
  • search
  • social media
  • twitter
Add to collection
Report this add-on
Release notes for 0.4.17
"\r\n\r\n## What's Changed\r\n🚫 Bug fixes\r\n Added support for Twitter's new response schema\r\n\r\n## New Contributors\r\n @book000 made their first contribution in https://github.com/kheina-com/Blue-Blocker/pull/410\r\n\r\nFull Changelog: https://github.com/kheina-com/Blue-Blocker/compare/v0.4.16...v0.4.17"
More extensions by Liquid Nitrogen
  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

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

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • 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.