How can i stop my dog from chasing other animals?

My dog is a border collie cross, she is really friendly with people but she seems to chase most animals when she gets them in her sight.
By the way she is 5 years old.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).