The best way to protect yourself against criminals exploiting vulnerabilities in Adobe Flash is to enable Click to Play Click-to-Play prevents Flash elements from being rendered in your browser unless you give specific permission by clicking. The simplest method is to install the Flashblock add-on in Firefox. The ClickTo plugin extension blocks Flash and other media plugins from running until granted permission. Google Chrome users can also enable Click to Play for Flash in Chrome or Firefox browsers. When Adobe does release a fixed version of Flash be sure to install it at your earliest opportunity.”]
Source: https://grahamcluley.com/enable-click-play-adobe-flash/