Web browsers such as Internet Explorer, Chrome, Firefox and their plug-ins such as Flash and Java are susceptible to exploits from malware. Two programs stand out here to guard against these attacks by stopping techniques used to bypass operating system security protections.
Malwarebytes Anti-Exploit is a free version that shields your web browser from attacks. It is easy to install. Install and forget! It shields vulnerable programs and protects against potentially harmful behaviour. This allows it to stop new attacks before signatures are created or patches are created. It allows more layers of protection.
Enhanced Mitigation Experience Toolkit (EMET) is also a free offerering from Microsoft. It has a wizard to step your through installation.