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When a Twitter Filter rule doesn't match, ?tf-debug shows exactly what data each tweet carried and why it was skipped — the fastest way to figure out why your rule isn't working.

Step-by-step guide to exporting your block list from one Twitter/X account and importing it into another using Twitter Exporter and Twitter Blocker.

Install and use Chrome/Firefox extensions on your phone. Step-by-step setup for Kiwi Browser, Firefox, and Safari on Android and iOS.

Identify typical spam account traits on Twitter/X and build rules to filter them with Twitter Filter.

Complete reference for writing Twitter Filter rules — every available field, operator, function, and practical examples.

Filter out tweets in languages you don't understand from your Twitter/X timeline using Twitter Filter's language rules.

A practical guide to blocking community members on X at any scale — from small communities to hundreds of thousands of spam accounts.

A step-by-step guide to exporting tweets, followers, bookmarks, and other data from Twitter/X using the Twitter Exporter browser extension.

How Mass Block Twitter evolved into two focused extensions — Twitter Blocker for batch blocking and Twitter Filter for timeline filtering — and which one to use.

Twitter's block feature no longer fully hides blocked accounts from your timeline. Use Twitter Filter rules to actually remove them.

Hide AI-generated Grok replies and mentions from your Twitter/X timeline using Twitter Filter rules.