No Speed Dial after deleting all Bookmarks
I deleted all Bookmarks from Vivaldi, now my Speed Dial is gone, and i cant add new ones
That's because Speed Dial is kept in Bookmarks. You need to open bookmarks and click New Folder and remake the SpeedDial folder.
Vivaldi keeps one backup copy of the Bookmarks so you may be able to recover them.
Look for a file named 'Bookmarks.bak' in the Vivaldi installation: <path>| User Data | Default
Delete the file named 'Bookmarks' (no file extension)
Rename 'Bookmarks.bak' to 'Bookmarks'.
You should have the SpeedDial again.</path>