I was using UC mini browser for a very long time but then I stopped using it as I updated it. As the updated UC mini browser runs a bit slow and it continuously keeps restarting which is really very irritating.
Their previous version was far better than their new version, it was fast and it runned perfectly. This new version shows adds also too much which just encourage you to uninstall it.
So I will recommend you not to update your UC mini browser.