Does Facebook still track me if I remove fbclid?

Removing fbclid breaks the Meta Pixel match for that specific click, but Meta Pixel may still fingerprint the visit via other signals if the destination site runs the Pixel. The cleanest mitigation is to also block third-party Meta scripts via your browser or an extension.

Why does every shared Facebook link have fbclid?

Facebook rewrites outbound links at click time specifically to inject fbclid. It's how Meta builds behavioral profiles of off-platform activity to feed ad targeting.

Remove tracking

Remove tracking from Facebook links

Facebook appends fbclid (Facebook Click ID) to every outbound link — including ones to non-Facebook sites. It's a unique per-click identifier Meta uses to track users across the web. mibextid does the same for Messenger. Both can be safely removed.

Try it — paste a Facebook link

Or prepend prunethe.link/https://www.facebook.com/events/123456789/?ref=newsfeed&fbclid=IwAR3abc123&mibextid=xyz

Before and after

Original (with tracking)

https://www.facebook.com/events/123456789/?ref=newsfeed&fbclid=IwAR3abc123&mibextid=xyz

Cleaned

https://www.facebook.com/events/123456789/

Removed (3)

reffbclidmibextid

What Facebook tracks in shared links

fbclid is attached whenever you click a link on Facebook or Messenger, even if the destination is a third-party site. If that destination uses Meta Pixel, Facebook can match the click to your account — even if you're logged out. mibextid is the Messenger equivalent.

Facebook tracking parameters explained

fbclid: Facebook Click ID — cross-site click attribution token.
mibextid: Messenger In-Browser External ID — Messenger click tracker.
ref: Referring surface (newsfeed, notification, groups, etc.).
referral_code: Explicit referral attribution token.
referral_source: Named source bucket for the referral.

Frequently asked questions

Does Facebook still track me if I remove fbclid?: Removing fbclid breaks the Meta Pixel match for that specific click, but Meta Pixel may still fingerprint the visit via other signals if the destination site runs the Pixel. The cleanest mitigation is to also block third-party Meta scripts via your browser or an extension.
Why does every shared Facebook link have fbclid?: Facebook rewrites outbound links at click time specifically to inject fbclid. It's how Meta builds behavioral profiles of off-platform activity to feed ad targeting.