Ouch!! What didn't you like about the new version? You can reply here or email [email protected]
You can install the previous version (3.2.0) from here - https://addons.vaultpit.io/en-US/firefox/addon/print-friendly-pdf/versions/ and disable auto update
If you email [email protected] with your issues, we can let you know when the new version has fixed the issues you are facing.
