20250224 Mac firewall issue in Sequoia

February 24, 2025•73 words

This took me hours to troubleshoot. Maybe it will save you time.

There were deep changes in MacOS networking between Sonoma and Sequoia (I'm on 15.3.1 now).

If your firewall was enabled before upgrade then your app lost access to local disk after upgrade, you can't solve this in the firewall UI (changes don't take, or not reliably). You can restore access in a Terminal window:

/usr/libexec/ApplicationFirewall/socketfilterfw --add /Applications/Application.app

e.g.:

/usr/libexec/ApplicationFirewall/socketfilterfw --add /Applications/MusicStreamer.app

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20250224 Mac firewall issue in Sequoia

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20250311 Supply chains and community

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