Install latest release on AMO: https://addons.mozilla.org/firefox/addon/nicofox/
Two ways to do it:
- Download and extract the source code, rename the folder to
nicofox@littlebtcthen move it to[your profile directory]/extensions/. - On Mac OS X, Linux, or on Windows with MinGW or Cygwin, install Git, clone this repository, then run
./build.shto generate XPI file.