Oct 26, 2018 Same problem here. IMac 5k 2015 with mojave (final but the problem presented itself in every beta) little snitch cause - not every time, 2 of 3 times - boot delay. Tried uninstall and reinstall, full onyx mojave version clear cache, boot in single user, utility disk sos from recovery. Nothing seems to improve the situation. Mar 31, 2020 Turns out that in order to properly uninstall, one must re-install application online and click uninstall, otherwise Little Snitch leaves junk on your app bar (mac).
Starting with macOS 10.15.4 the above “Legacy System Extension” message will be shown when Little Snitch is installed.
→ Please read this blog post to learn more about why this message is shown.
Will there be an update of Little Snitch that’s compatible with macOS 10.16?
Yes. We are going to release Little Snitch 5 later this year, which will be compatible with macOS 10.16. → Learn more…
Uninstall Little Snitch Mojave Movie
Will I get the update for free?
Yes. All licenses sold now include a free upgrade to Little Snitch 5. In addition, customers who purchased Little Snitch 4 within a one-year period prior to the final release of Little Snitch 5 will also get a free upgrade. → Learn more…
Will Little Snitch 4 run on macOS 10.16?
Little Snitch 4 will not be loaded on macOS 10.16 by default, but there will still be an option to allow the loading. → Learn more…
Assuming you’ve downloaded the Little Snitch Disk Image (.dmg file) to your Downloads folder, open a new Terminal window and enter the following command to verify the cryptographic signature of the downloaded file:
Uninstall Little Snitch Mojave Full
codesign --verify -R='anchor apple generic and certificate leaf[subject.OU] = MLZF7K7B5R' ~/Downloads/LittleSnitch*.dmg
If the result of this command is empty (no error message is shown), the file is intact and properly signed by Objective Development.
However, if an error message is shown (like “not signed at all” or “failed to satisfy specified code requirement(s)”), this indicates that the file was maliciously modified and is no longer signed by Objective Development. In that case you should NOT open the disk image file.