Autocomplete for Opera
Just download this userJS to your userJS folder, or use userJS manager:
Some more information:
1. Script use localStorage for storing the data, so it's working only in Opera 10.50+
2. You can use Shift+Click to delete item from the list
3. If you are downloading snapshots, sometimes localStorage stops working after installation of new build. You'll have to delete all storage in Opera to make it work.
4. You can use double click on empty field to show all items
I uploaded new version in which you can use arrows up and down instead of CTRL+arrow left/right but I could make some bugs, so if you will find any - please report it!