Changed From: moz-extension://5f14c64f-2d09-4117-8dfa-8bcee467a796/newtab.html

To:                   moz-extension://6b8ca999-4ed7-40d7-8223-a06e71860ba2/newtab.html

I have fixed the problem, the address for the Home Page only worked after opening a new tab so I then click "Use Current Page" and the address changed, now Speed Dial displays when I start Firefox.

I clicked on Report Bug and I filled in the boxes.

Yes I have tried to restart Speed Dial, I have uninstalled and reinstalled but every time I open Firefox even if I open multiple time I have to click the + next to the first tab to open a second tab and only then dose Speed Dial open.