I installed TCPBlock and whenever I try to open the TCPBlock preference pane I get the error: "Unable to load TCPBlock preference pane". Does anyone know what might cause this?
TCPBlock and OS X 10.9
Use the Console.app utility included in Mac OS X to look for error messages. Console.app is located in: /Applications/Utilities
With Console.app running, try opening TCPBlock preference pane again. You will likely see a little flurry of messages.
Possible problems include the preference pane being built for 32-bit Macs only, and missing frameworks or dependencies.
I ended up doing a search using EasyFind, since OS X search doesn't find much, and deleted some remaining files, reintsalled, and it works now.
TCPBlock seems to have been discontinued an doesn't work since El Capitan. https://www.tripmode.ch/ looks like a good alternative.