X blocked in Chrome on a Mac: the page can't connect and no posts load

Guide

How to block X on your Mac

There are three ways to block X on a Mac: what's built into macOS, a browser extension, or a system-level blocker. Here's how each one works so you can pick the best one for you.

Updated September 2026

Your options

Three ways to block X on a Mac

Screen Time

Built into macOS, free.

Good when you only use Safari and want a daily limit rather than a wall. Add x.com under Screen Time's website restrictions.

Falls short when you open Chrome or any other browser, and because your own passcode lifts the limit in a few seconds.

Setup: Apple's guide to content restrictions

A browser extension

StayFocusd, LeechBlock NG, BlockSite.

Good when you live in one browser. StayFocusd is Chrome only, LeechBlock NG also runs in Firefox and Edge, and both are quick to set up with a free tier.

Falls short when a second browser is open, or when the extension's own settings page is two clicks away at the moment you least want it to be.

Setup: StayFocusd·LeechBlock NG·BlockSite

Our recommendation

A system-level blocker

SelfControl (free), Cold Turkey, or Focus Firewall, the one we make.

Good when you want X gone in every browser at once. These sit below the browser, so a second window or a fresh install changes nothing.

Falls short when you're not up for a bit of setup. They can be a little harder to set up initially, some need a lot of configuration, and some are paid.

More of this kind: our roundup of focus apps for Mac

Our recommendation

Focus Firewall

Disclaimer: this is our app. Focus Firewall is a system-level blocker we built with a lot of care, and the rest of this page is about using it to block X, and to keep it blocked on a daily basis. If it's not for you, the alternatives above are good, and our blog compares them in more depth.

How we got here: we tried the others first, for years. Screen Time is Safari only. Extensions cover one browser. The strict ones lock you out cold turkey-style, no exceptions. It's not uncommon to give up in a few days and go back to square one. The full-featured ones have too many knobs: timers, sessions, modes, endless tweaking, until the tweaking is the distraction. So we wrote our own.

How it's different: it runs on a schedule so there's nothing to start, and stopping it asks for Touch ID. The rest is in the table, and the setup is right below.

Screen
Time

Browser
extension

Focus
Firewall

Blocks X in every browser

Safari

Survives switching to a new browser

Turns on and off by schedule

Some

Asks for Touch ID to stop

Comes back on its own after a pause

Shows it's on, from the menu bar

Counts your time on X, hour by hour

Safari

Some

Covers x.com and twitter.com

You list them

Needs an account or sends data anywhere

Varies

Setup

Blocked in under a minute

X is already in our Social Media list. To get started:

InstallDownload from the Mac App Store. macOS asks once for the permission that lets Focus Firewall filter traffic.
Pick Social Media during onboardingIt's one of the lists on the "What distracts you?" screen, and X is already in it.
Set your work hours and start blockingYou're done! Once blocking is active, you won't be able to access X.

The Focus Firewall blocklist window, with Social Media, Streaming Video and the other categories in the sidebar and a switch per site

Menu bar popover with Social Media, Streaming Video, News and Shopping switched on

macOS asking for Touch ID because Focus Firewall is trying to turn off blocking

Menu bar popover with the pause menu open: 1, 5, 10, 15 and 30 minutes, 1 hour, or until tomorrow

When you need a break

Off takes a deliberate step. Pause takes one click

Stopping the block asks for Touch ID or your password. Pausing is easy on purpose: pick one, five, ten, fifteen or thirty minutes, or an hour, and blocking comes back by itself when the time is up. A lunch break stays a lunch break.

“The scheduler makes the app work on autopilot, blocking distracting websites during my working hours seamlessly.”

★★★★★Mac App Store review

Browsing Report

See how much X actually gets

Time on each site, hour by hour, with every blocked attempt marked as a dot. It's a quiet way to notice the 10 AM X reflex, and to watch the number fall once the block is on. Everything stays on your Mac.

More about the Browsing Report

Browsing Report timeline: blocking on from 10 AM to 5 PM, with blocked YouTube, X and Instagram attempts marked as dots

X blocked in every browser you own

No extensions, no account. Nothing leaves your Mac.

Free download. Plans from $2.99 a month or $29.99 once.

Questions about blocking X

Yes. Focus Firewall filters traffic at the system level, so Safari, Chrome, Firefox, Arc, Brave and every other supported browser are covered at once, with no extension to install.

Yes. Both are in the list, and X Pro at pro.x.com is the same domain, so it's blocked too.

The ads and developer dashboards at business.x.com and developer.x.com stay reachable. Posting from the site is blocked with the rest, so pause for a few minutes from the menu bar.

If your browser still has a cached shell of the page, it shows that, but nothing on it loads. Every column ends in a Retry button and the timeline stays empty. Refresh and you'll see the connection error.