This Firefox add-on is available here__ on the Mozilla Add-Ons Website.

To build and install from the source code, you need to:

* install and activate the Add-on SDK as explained here__.
* use ``cfx run`` in this folder to launch an instance of Firefox with the
  add-on enabled.
* use ``cfx xpi`` in this folder to package the add-on as an XPI file that
  you can then install at ``about:addons``

__ https://addons.mozilla.org/en-US/firefox/addon/browsing-activity-tracker/
__ https://developer.mozilla.org/en-US/Add-ons/SDK/Tutorials/Installation