How to Block X (Twitter) on Chrome (in ways that actually stick)

X is engineered around the unfinished feeling: the timeline refreshes faster than you can read it, the For You algorithm surfaces outrage because outrage gets replies, and every visit ends mid-thought. Knowledge workers rationalize it as 'staying informed', which is what makes it the hardest feed to admit is a feed.

Option 1: Block X (Twitter) manually (free, but you hold the keys)

Chrome has no built-in "block this website" button for normal installs, so the manual route means editing your computer's hosts file: point the domain at 127.0.0.1 and the site stops resolving. It costs nothing and needs no software.

X moved from twitter.com to x.com, and half the blocklists on the internet still only cover the old domain. Any blocker that doesn't handle the twitter.com to x.com redirect chain blocks nothing. (Focus AI tracks the redirect, which sounds obvious but cost us a bug fix to get right.)

The deeper problem is structural: any block you can set up in two minutes, you can undo in thirty seconds, and the moment you'll want to undo it is precisely the moment it exists for. Manual blocks are honor-system locks.

Option 2: A list-based blocker extension

Extensions like BlockSite or StayFocusd let you add the domain to a list, which beats the hosts file on convenience. Two weaknesses remain: the list is binary (the whole domain is blocked even when part of it is genuinely useful for your work), and the off switch is two clicks away in your extensions menu. List blockers stop the absent-minded visit; they rarely survive a motivated one.

Option 3: Block X (Twitter) with an AI that knows what you're working on

Focus AI works differently: you type what you're doing ("finish the calculus problem set"), pick a duration, and lock in. During the session, the AI reads every page you open against that task. X (Twitter) gets blocked when it doesn't serve the work, and the block page shows your own promise back to you, with an escape-attempt counter and a running tally of the time you've saved.

1. Install Focus AI from the Chrome Web Store (free, no account needed).
2. Type the task you're actually here to do and choose a session length.
3. Click Lock me in. X (Twitter) now hits a wall for exactly that long, and quitting early means typing your surrender letter by letter.

Two details matter for social feed sites specifically: the AI evaluates pages rather than domains, so the useful corners of the internet stay reachable while the feed does not. And every time you walk away from the block page, the win is stamped and timed: resisting X (Twitter) becomes a streak you can watch grow instead of a sacrifice you silently endure.