[...] inviato da seidifiori ..e per opera? certamente usano degli user script semplici da installare un MUST [...]

Is there any update on list?

[...] per chi fosse curioso circa gli User JavaScript [...]

Thanks, but maybe people will find more visual presentation easier to understand.

Below is a screenshot and a short instruction:
http://my.opera.com/c69/blog/tutorial-how-to-enable-user-javascript-in-opera

[...] http://kyleabaker.com/goodies/opera/userjs/ – Kyle on Opera JS. [...]

@carlos
Thanks for the tip, however, I’m not the author of those UserJS files. I simply linked to several that I found useful.

“images.google.com – Google Image frame bypasser” does only work for me by inserting a anonymous function as recommended by Opera itself (http://www.opera.com/docs/userjs/using/#writingscripts):
==
In order to prevent conflicts with any scripts on the page, it is best to use the DOM addEventListener method when detecting events. Use of the traditional event registration models, such as window.onload = myfunction; is not recommended. Using anonymous functions where possible in event handlers is also preferred.
==

Thanks for sharing. I am just starting out with JS files so this helps a lot.

Thanks Dapxin!

Thanks. I found Xipee useful.