Web browser help

I would like to ask, I bought a TV Sencor SLE32S802TCSB and I have a problem with my web browser. When you run a movie through a browser, you can’t maximize the full-screen image. I tried to set all sorts of things in the TV settings as well as in the browser, but I couldn’t solve the problem. Could you please advise me how to solve this problem?

Closed as Duplicate of Web browser problem