That “Something went wrong… Some privacy related extensions may cause issues on x.com” screen shows because X’s core JS bundles were blocked. You can fix it fast:

60-second fix

  1. Open an incognito/private window (extensions are off by default) → go to https://x.com.
  2. If it works there, disable/allow-list any blocker on normal mode for x.com:
    • uBlock/AdBlock/Privacy Badger/NoScript/uMatrix/Ghostery/Brave Shields, etc.
    • In Brave: click the lion → Shields off for x.com (and allow fingerprinting/cookies for testing).
    • In Firefox: click the shield → Turn off Enhanced Tracking Protection for x.com.
    • In Chrome/Edge: allow third-party cookies for x.com.
  3. Hard refresh (Ctrl/Cmd-Shift-R).

Make sure these domains aren’t blocked

Allow/permit these (CDN/API/emoji/video) on your blocker, DNS filter (Pi-hole/NextDNS), or firewall:

x.com
twitter.com
api.x.com
api.twitter.com
abs.twimg.com
abs-0.twimg.com
pbs.twimg.com
video.twimg.com
t.co
ton.twimg.com

Tip: open this in your browser:
https://abs.twimg.com/responsive-web/client-web/main.a3ef0c3a.js
If you see ERR_BLOCKED_BY_CLIENT (or it doesn’t download), an extension or network filter is blocking it.

Clear per-site data/permissions

  • Chrome/Edgelock icon → Site settings → Clear data + Reset permissions for x.com and twitter.com.
  • Firefoxlock icon → Clear cookies & site data for x.com.
  • SafariSettings for This Website → Remove All Website Data; temporarily disable Prevent Cross-Site Tracking to test.

Check JavaScript & cookies

  • Make sure JavaScript is enabled (Noscript can trigger this page).
  • Temporarily allow 3rd-party cookies for x.com (some auth/static assets come from *.twimg.com).

Network & device checks (if still broken)

  • Disable VPN/company proxy/content filter; try a different network or mobile hotspot.
  • If you use Pi-hole/NextDNS: add the domains above to allow-list.
  • Clear DNS cache (or try a different DNS), and verify system date/time is correct.
  • Update browser to the latest version.

Quick diagnostics

  • Open DevTools → Network tab → reload. Look for red requests to the big bundles like
    vendor-*.js or main.*.js. If the status says blocked, that’s your blocker.
  • Console errors like CSP, blocked by client, or Failed to load resource point to the same.

Try those in order—most people get back in by allow-listing x.com + *.twimg.com or toggling the site’s tracking protection off.

Key terms in plain language

Open a term for a concise explanation of language used on this page.

Fiber Internet

Internet delivered through strands of glass using light. Fiber commonly supports high capacity, low latency, and strong upload performance, but availability must be confirmed for the exact address.

VPN

A virtual private network creates an encrypted connection across another network, commonly allowing remote users or offices to access private resources securely.

Content Delivery Network (CDN)

A distributed system that serves website or application content from locations closer to users, improving speed, resilience, and capacity.

API

An application programming interface is a defined way for software systems to exchange data or request functions from one another.

Cybersecurity

The practices and controls used to protect identities, devices, networks, applications, and data from unauthorized access, disruption, or manipulation.

Zero Trust

A security model that does not automatically trust a user or device because of its location. Access is continuously verified and limited to what is necessary.