Till now there is no official download available for portable editions of major web browsers. Only third party’s editions are available. But, now with Opera 11, you can either install it as usual or run it in portable mode, suitable, if you don’t like third party portable editions. One main benefit of portable editions is it will not affect any of your system settings. Here is how you can run Oper
![Run Opera 11 in portable mode](https://cdn-ak-scissors.b.st-hatena.com/image/square/291738c263d76a4e15d4ad84ec907bf7acc64bf4/height=288;version=1;width=512/https%3A%2F%2Fblogger.googleusercontent.com%2Fimg%2Fb%2FR29vZ2xl%2FAVvXsEi2h-B7rTFg1PrLDQgDySEjRxvg9CUTD9SVJVyvwEU7BYus0m_IlVlYEVX13mOtnFZGThGrtLITIXb9gCu-8rcpyPR_N31Y4tNBMxSRdGQDk29yESKH8HVp1z6P9EAiLLcw8zcyh5UQFEyF%2Fw1200-h630-p-k-no-nu%2FOpera-11.jpg)