If you are regular Opera browser users, then grab Stu’s Opera Settings Import & Export Tool for managing, migrating, backing up and restoring Opera profiles quickly.
This small tool has lot of feature to transfer specific preferences. It allows you to preview your settings before importing or exporting. It neatly transfer individual settings without the cruft that can build up in an Opera profile folder.
It stores settings files in their original state in an open archive (tar.gz) format, so your exported settings can always be easily restored by hand should the need arise. It can also correct .ini paths on import so settings imported from a different folder/OS work correctly.