X Blocker by bitcooker
Mass block X (Twitter) accounts from followers, likes, reposts, replies, searches or imported lists. Review before you block, undo anytime. Paced to stay under X's limits, private, and multilingual.
Available on Firefox for Android™Available on Firefox for Android™
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About this extension
X Blocker is a mass block tool for X (Twitter): block many accounts at once, safely, and undo it if you change your mind.
How it works
Safety
Privacy
Open source (GPL-3.0): https://github.com/bitcooker/x-blocker
X Blocker is an independent project and is not affiliated with or endorsed by X Corp.
How it works
- Open a followers, following, likes, reposts, replies, search, list or community page on x.com. The X Blocker panel at the bottom works with that list's accounts only.
- Press Review, untick anyone you want to keep, and press Block. Accounts are blocked one by one in the background while you keep browsing. Prefer no review? Turn it off in Settings and the button becomes Block, which queues the whole list at once.
- Posts and accounts also get a Block button. It asks first and blocks right away, like X does, or, if you prefer, adds the account to the paced queue with one click. You can show the buttons everywhere, only on lists, or turn them off.
- Long lists can be done in parts: review, block, scroll and review again, or let Load all scroll to the end for you.
- Every list you block is a batch. Undo a whole batch from the dashboard, or unblock single accounts.
- Import @handles, profile links or IDs (text or CSV). Export your blocked list or queue as a CSV to keep or share. IDs keep working when people change their handle.
- Available in English, فارسی (Persian), العربية (Arabic), Deutsch, Español, Français and Türkçe, with full right-to-left layouts for Persian and Arabic. It follows your browser's language, or pick one in Settings.
Safety
- Hourly and daily limits (150 and 1,000 by default) and human-like pacing keep you under X's limits.
- If X slows you down, the queue waits and then resumes by itself.
- Never blocks you, and by default skips people you follow and people who follow you. You can also skip verified accounts and keep a Never block list.
- Look-alike display names and @mentions can't redirect a block to the wrong account.
Privacy
- Everything stays in your browser. There is no server, no analytics, no account and no tracking.
- Messages, notifications and settings pages are never read.
- Only the accounts you queue and block are saved, on your device. Nothing is uploaded or shared.
- Delete all data erases everything in one click.
Open source (GPL-3.0): https://github.com/bitcooker/x-blocker
X Blocker is an independent project and is not affiliated with or endorsed by X Corp.
Rated 5 by 1 reviewer
Permissions and data
Required permissions:
- Access your data for x.com
Optional permissions:
- Access your data for x.com
- Access your data for api.x.com
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 0.7.0
- Size
- 247.87 KB
- Last updated
- 4 days ago (Oct 25, 2026)
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- Version History
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