Migrating from Windows
Is there a way to migrate my Vivaldi settings, sessions, etc from Windows to Linux? Do I just copy the AppData folder?
I'm sure others know more than me.
What seemed to do the trick was copying the User Data folder from the AppData\Local\Vivaldi folder to your /home/USERNAME/vivaldi-snapshot folder.
The only thing that I had to do was re-install my extensions.
As ugly said (though extensions can be fixed). You'll also lose browser-saved passwords, assuming you're using that feature, but migrating those is a bit more difficult.