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Firejail vs AppArmor: catalog facts
Firejail	AppArmor
Free Free and open source.	Free Free and included in the mainline Linux kernel.
Linux, Command line	Linux, Command line
Sandboxes existing applications without modifying them Uses kernel namespaces and seccomp-bpf filtering	Enforced by the kernel, not by the confined program Per-application profiles covering files, network, capabilities and DBus
Linux only Runs as a SUID program, which some users consider a risk in itself	Linux only Writing and tuning profiles takes time and testing
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.