Firebase Security Course, from Fireship, focuses on one specific, high-stakes skill: writing Firestore security rules that actually hold up.
From Basics to Auditing
The course moves from how security rules evaluate reads and writes, into auditing an existing Firebase app for weak rules and mapping out where its real data risks are.
What You'll Learn
- Role-based rules and access-control patterns for shared data
- Public, private, and mixed-access patterns done correctly
- Writing faster, reusable rule logic without sacrificing clarity
- Unit testing security rules and debugging them in the emulator
Across 14 lessons, the goal is a Firebase project you can launch with actual confidence in its access controls, not just a rules file that happens to compile.