Google has announced that it will be extending its policy that requires Chrome extensions to be hosted on the Chrome Web Store to all Mac users beginning in July 2015. Google says it is extending the policy, originally announced in May 2014, to protect users against unsafe Chrome extensions by malicious software developers.
"We originally did not enforce this policy on the Windows developer channel in order to allow developers to opt out," writes Google. "Unfortunately, we’ve since observed malicious software forcing users into the developer channel in order to install unwanted off-store extensions. Affected users are left with malicious extensions running on a Chrome channel they did not choose. As such, starting today we will begin enforcing this policy on all Windows channels. Mac will soon follow, with enforcement for all channels beginning in July 2015."
Google says it saw a 75% drop in customer support help requests from Chrome users inquiring about how to uninstall unwanted extensions since enforcing the policy for some Windows users. The company will continue to support local extension installs during development and installs via Enterprise policy. Developers with third-party extensions not currently on the Chrome Web Store can submit them for approval.