Just upgraded to Opera 12. I was not aware about the upgrade unless I receive a popup no screen. So before getting a upgrade I planned to check some site what it offers. They says that this browser can be customized more. That means we can change everything here. So I want to ask you that whether I should go for the upgrade or leave the current 11.xx version. Because I am quiet happy with the current one and just for customization I do not prefer to upgrade. Will this effect the browser security. Because by customization means you are going to add images or themes in the browser. I was using Firefox and when I add themes it lags like hell. It respond so slow. It consumes more than memory. Customization in my views needs a better development where light weight skins should be introduce. I constantly share and upload stuff on internet and for that I need a smooth browser.