_fssid Cookie

What does the _fssid cookie do?

_fssid is a cookie set by Facebook to identify devices and maintain user session persistence.

Why this cookie matters

This cookie is commonly used by unknown for purposes – such as tracking usage behaviour, optimising experience, or enabling marketing functionality.

How Cookifi helps you manage this cookie

Cookifi automatically detects cookies like _fssid, categorises them, and gives you full control over when and how they load - based on your users' consent choices.

Whether you manage consent via Google Tag Manager, consent APIs (like the Shopify or WordPress Consent API), or prefer automatic cookie blocking or manual script control, Cookifi integrates seamlessly into your stack.

Built for technical marketers, business owners and developers, Cookifi offers flexibility without sacrificing compliance.