grahamperrin@momh167-gjp4-8570p:~ % pkg query %M -r FreeBSD firefox Always: ====================================================================== Some features available on other platforms are not implemented: - Native audio (requires OSS backend, feature parity with ALSA or PulseAudio) - Encrypted Media Extensions (requires Widevine CDM binary) - Process sandboxing (requires Capsicum backend) - Reduced memory usage (requires mozjemalloc) - Crash Reporter (requires Google Breakpad and reproducible builds) - Performance profiling (requires GeckoProfiler) - Gamepad API (requires libusbhid backend) - WebVR (requires open source runtime) - TCP fast open - about:networking (requires link state notification) ====================================================================== On FreeBSD < 11.3 Web Content process may frequently crash due to bug 181741. If you cannot upgrade try applying the following workaround: $ sysctl net.local.stream.recvspace=16384 ====================================================================== To select non-default audio backend open about:config page and create media.cubeb.backend preference. Supported values are: alsa, jack, pulse, pulse-rust, sndio. Currently used backend can be inspected on about:support page. ====================================================================== smb:// issues (Gvfs/GIO option): Network group, machine, and share browsing does not work correctly. sftp:// (Gvfs/GIO option): Only sftp access using public key authentication works. To easily setup public key authentication to "remote_host": ssh-keygen cat ~/.ssh/id_rsa.pub | ssh remote_host "cat >> .ssh/authorized_keys" The SSH server on remote_host must allow pub key authentication. ====================================================================== grahamperrin@momh167-gjp4-8570p:~ %
This has nothing to do with Firefox. This is something pkg does for basically all pkg messages. Run `pkg info -D -a` and you'll see. pkg supports having discrete messages on install, remove, upgrade of a package instead of just a message for every situation ("always"). This feature is unused in the ports collection at the moment AFAICT.