Add-Ons in Opera delete
- Click the top left of the window, click the button "Opera" and select "manage extensions" > "extensions".
- You will now see all the installed Add-Ons. Select the desired extension from the list and click the Uninstall Button on the right"".
- Confirm again with "Uninstall", the application will be removed from Opera.

Opera: Add-Ons delete
Is you the Browser is too slow, you can with just a few tricks Opera speed.