To allow passb to communicate with your password-store installation, you have to install the passb host application.
downloading the host application
bundled with node.js
There are bundled ready-to-run downloads available at the github replease page.
from source
If you already have an installation of node.js in a recent version, you just use that. In this case, just clone the repository:
git clone https://github.com/passB/nodeHostApp.git
installation
To install the host application, depending on your platform, run install_host_app.sh firefox (Linux and Mac OS) or install_host_app.bat firefox (Windows)
Be sure to do this from a console, where pass is available and working. The installer will snapshot the following environment variables so that they are also available when called from Firefox:
PATHHOMEGNUPGHOMEPASSWORD_STORE_DIRPASSWORD_STORE_GPG_OPTSPASSWORD_STORE_ENABLE_EXTENSIONS
If you want to change any of those values in the future, just re-run the installer script from a console that is configured approriately.