Hello, Seems like you have some issues :) Anyway if your Firefox is slow, consider using Firefox reset to make it fast again: https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings
Regarding features compared to the original Speed Dial by Joep del Rio - I would say I have almost all that he had plus the cloud synchronization. Also I've been developing this for more than 16 months now.
