https://forums.opera.com/topic/13397/how-to-restore-old-state-of-speed-dials/?
How to restore old state of Speed Dials? | Opera forums
Oct 2, 2016 - I accidentally wiped all of my Speed Dials when changing something in Xmarks bookmarks sync extension. Does Opera keep some form of bookmarks backup by itself...
how to restorestate of speedolddialsopera