I cannot log in any website. I am using samsung galaxy note 3

After I update to verson 5.0, I cannot login to any websites. It says I have a problem with a screen resolution and Flash. So, I download and start using it, but it does not really helpful.

Have you installed Flash Player version 11.1? (Downloading it isn't enough - you have to install it [by running it], and you have to use a browser that supports it, like Dolphin or Firefox.)