Firefox and extension

Hi there,
I have been using Paperplie on Firefox for the last few weeks, and it is a game-changer.
I decided to upgrade to a paid subscriber, which asked me to revert to the last build, which I did. It no longer works on Firefox; even the extension does not work.
Help! I need this to work. Is there a way to go back to where I was?

Regards
John

To fix this error, you can take some steps, such as:

  1. Updating firefox
  2. Clear cache and cookies of browser
  3. Check compatibility
  4. Rollback firefox if require
  5. If still problem exist then go for contact support
    Thanks