You'll have to manually install the adobe flash apk on your phone or no browser will play flash. You can get the apk from various places, one is XDA dev forum. Once it's installed, you should be able to use the stock browser or any third party browser, like Dolphin, Skyfire, Opera Mobile, etc that you previously used to view flash unless the browser devs update the browser to not support it any longer, so be careful about updates. Chrome of course never supported it and still won't. Google is supposed to put out a flash alternative later in the year for Chrome.