SECURITY ALERT: There are TWO active 0days against Flash in the wild. The latest Flash update only fixes one of them. Set Flash click2play.
— InfoSec Taylor Swift (@SwiftOnSecurity) January 22, 2015
A lot of malware and viruses infect your computer through browser plugins.
As of today, there are two critical holes in the Adobe Flash Player.
Most websites work without Flash, for example YouTube makes use of HTML5 videos and works even better without Flash. It’s not as intuitive to disable- or use click2play in Chrome as it is in Firefox.
To enable click2play, go to Preferences, click Show advanced settings, scroll down to the privacy settings, click on Content Settings and you will find Click-to-play in the window that has just been opened.