I’m not really fond of Opera’s translation menu; maybe it’s because it only offers a handful of languages (and I have some Finnish, Danish, Swedish and other -ishes friends on Facebook).
Hopefully Opera’s known power user, Tamil, had a solution for a similar task, which I changed a bit:

Go to Tools -> Preferences -> Advanced -> [...]

I recently tried the synchronization feature of Opera. Although it’s a neat feature, I wasn’t really needing it, therefore I decided to cancel it. But for some days I kept seeing a new message on the status bar: “Synchronization disabled”.
A quick search didn’t reveal any non-trivial (read: touch ini files) methods, but, after reading a [...]