I’m still using Opera v12.17 and like the Speed Dial feature too much to upgrade to one of the new versions. Thanks for the Vivaldi tip; he’s my favorite composer, too.
On the recommendations of Freepers I switched to Pale Moon and was able to find a plug in to get a speed dial that's even better than the old Opera SD feature. Even set it up so that it's what displays when I open a new tab. Very nice. Also found a very nice password manager.
Highly recommended.