Autojump is a command-line utility that "learns" from your filesystem navigation via the "cd" command, and allows you to jump quickly to oft-travelled-to directories. Source, installation and usage information are at Github. After seeing this tweet from Dion, I went to install it, only to remember that I'm on Windows 7 now. Bah. So, I tweaked it a bit to run inside the MozillaBuild environment. Assuming you've cloned/downloaded Autojump, here are the steps to get it working:

  1. Open Mingw, navigate to the autojump source directory
  2. Remove all instances of "sudo" from the install.sh file
  3. Get your Python path: $ which python
  4. Replace /usr/bin/python with your Python path in the autojump file
  5. Run install.sh