Is it normal for the Little Snitch Network Extension to consume Gigabytes of memory? No it isn’t. Unfortunately that’s another new bug in the Network Extension framework of macOS. It’s a memory leak in Apple’s framework, which developers must use to create a firewall for the Mac. This bug first occurred in macOS 15.0 Sequoia. You can easily check if you are affected by this bug by running the leaks command in a Terminal window: sudo leaks at.obdev.littlesnitch.networkextension | grep "total leak...