Hello,
This article should help with the dials recovery:
https://github.com/fastaddons/GroupSpeedDial/wiki/Recovery-of-your-dials,-how-are-dials-stored-and-how-to-make-a-backup
Best Regards,
Juraj Mäsiar

Hello,
Is there some error message?
Unless you are using some very old Firefox, everything should work.
Maybe this article will help:
https://github.com/fastaddons/GroupSpeedDial/wiki/Fixing-broken-dials-page
Best Regards,
Juraj Mäsiar