Google Chrome completes another step in its effort to protect Chrome users: disabling inline installation for extensions linked to deceptive sites and ads.
Inline installation was introduced in 2011 as a way for users to seamlessly install extensions from developers’ websites. Unfortunately, this mechanism has been abused by deceptive sites and ads that trick users into installing unwanted extensions.
Read more here – http://blog.chromium.org/2015/08/protecting-users-from-deceptive-inline.html