[GH-ISSUE #542] Connection issues with LittleSnitch Firewall on macOS #834

New Issue

saavagebueno · 2026-08-05T00:40:07-04:00

saavagebueno commented

2026-08-05 00:40:07 -04:00

Originally created by @vordenken on GitHub (Nov 4, 2022).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/542

For some reason Netbird started having issues with my application firewall LittleSnitch...
Despite the fact that I allow every connection for the Netbird app in LittleSnitch it still doesn't connect and throws an error (Screenshot for reference). If I disable LittleSnitch temporarily and start Netbird, it works - funny enough it then still works after enabling LittleSnitch again - maybe because it doesn't kill the established connection.

What I don't get is I'm running LittleSnitch for years and also used Netbird for the last 2 weeks and this issue started to appear today...

If you guys need any more informations or logs please lmk :)

Originally created by @vordenken on GitHub (Nov 4, 2022). Original GitHub issue: https://github.com/netbirdio/netbird/issues/542 For some reason Netbird started having issues with my application firewall LittleSnitch... Despite the fact that I allow every connection for the Netbird app in LittleSnitch it still doesn't connect and throws an error (Screenshot for reference). If I disable LittleSnitch temporarily and start Netbird, it works - funny enough it then still works after enabling LittleSnitch again - maybe because it doesn't kill the established connection. What I don't get is I'm running LittleSnitch for years and also used Netbird for the last 2 weeks and this issue started to appear today... <img width="1128" alt="Bildschirmfoto 2022-11-04 um 13 40 42" src="https://user-images.githubusercontent.com/62395860/199974872-01db653b-6ecb-4535-a8aa-aceb567addc5.png"> If you guys need any more informations or logs please lmk :)

saavagebueno closed this issue

2026-08-05 00:40:07 -04:00

saavagebueno commented

2026-08-05 00:40:07 -04:00

@vordenken commented on GitHub (Nov 7, 2022):

After some more troubleshooting I probably found the underlying issue.
LittleSnitch still thinks the path of the process is "/opt/homebrew/Cellar/netbird/0.10.2/bin/netbird" but I already have a newer version so the real path is /opt/homebrew/Cellar/netbird/0.10.4/bin/netbird - because of that LittleSnitch cannot find the process to allow connections.
Even removing all references to Netbird in LittleSnitch (allow/blocklists etc) and then starting Netbird again, LittleSnitch still says that Netbird is in the old file path.

I have a lot of programs installed through brew and never had that problem before - so this might be a Netbird issue?

@vordenken commented on GitHub (Nov 7, 2022): After some more troubleshooting I probably found the underlying issue. LittleSnitch still thinks the path of the process is "/opt/homebrew/Cellar/netbird/0.10.2/bin/netbird" but I already have a newer version so the real path is /opt/homebrew/Cellar/netbird/0.10.4/bin/netbird - because of that LittleSnitch cannot find the process to allow connections. Even removing all references to Netbird in LittleSnitch (allow/blocklists etc) and then starting Netbird again, LittleSnitch still says that Netbird is in the old file path. I have a lot of programs installed through brew and never had that problem before - so this might be a Netbird issue?

saavagebueno commented

2026-08-05 00:40:07 -04:00

@mlsmaycon commented on GitHub (Nov 7, 2022):

Hello, @vordenken does LittleSnitch works with symlinks? The way homebrew works with formulae applications is that it installs them in a version-specific path like /opt/homebrew/Cellar/netbird/0.10.4 and then it creates a symlink to /opt/homebrew/bin/netbird

@mlsmaycon commented on GitHub (Nov 7, 2022): Hello, @vordenken does LittleSnitch works with symlinks? The way homebrew works with formulae applications is that it installs them in a version-specific path like /opt/homebrew/Cellar/netbird/0.10.4 and then it creates a symlink to /opt/homebrew/bin/netbird

saavagebueno commented

2026-08-05 00:40:07 -04:00

@vordenken commented on GitHub (Nov 7, 2022):

Just checked the release notes and apparently this got removed in version Little Snitch 4.3.2...
Weird because I have other stuff install via brew and haven't got any issues.
Is a normal installer / drop-in program for Mac planned?

@vordenken commented on GitHub (Nov 7, 2022): Just checked the release notes and apparently this got removed in version Little Snitch 4.3.2... Weird because I have other stuff install via brew and haven't got any issues. Is a normal installer / drop-in program for Mac planned?

saavagebueno commented

2026-08-05 00:40:07 -04:00

@mlsmaycon commented on GitHub (Nov 7, 2022):

Yes, it is. Also, we plan to move the daemon bin to the applications folder with the UI client, leaving things a bit more clean for the MacOS install

@mlsmaycon commented on GitHub (Nov 7, 2022): Yes, it is. Also, we plan to move the daemon bin to the applications folder with the UI client, leaving things a bit more clean for the MacOS install

saavagebueno commented

2026-08-05 00:40:07 -04:00

@vordenken commented on GitHub (Nov 9, 2022):

small update regarding my problem: after stopping netbird, removing the rules in LittleSnitch and restarting my Mac, LittleSnitch (for now) sees the new symlink for 0.10.7.

@vordenken commented on GitHub (Nov 9, 2022): small update regarding my problem: after stopping netbird, removing the rules in LittleSnitch and restarting my Mac, LittleSnitch (for now) sees the new symlink for 0.10.7.

saavagebueno commented

2026-08-05 00:40:08 -04:00

@mlsmaycon commented on GitHub (Jun 16, 2023):

Closing as the issue seems to be fixed with the upgrade

@mlsmaycon commented on GitHub (Jun 16, 2023): Closing as the issue seems to be fixed with the upgrade

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Reference: DYNR/netbird#834