An anonymous reader writes "Last week, Mozilla announced it will prompt Firefox users on Windows with old versions of Adobe Reader, Adobe Flash, and Microsoft Silverlight to update their plugins, but refused to detail how the system will work. Now, the organization has unveiled 'click-to-play plugin blocks,' which will be on by default in Firefox 17, starting with the three aforementioned plugins. (Expect more to be added eventually.) Furthermore, you can try out the feature for yourself now in Firefox 17 beta for Windows, Mac, and Linux." Also coming in Firefox 17 is support for Mozilla's "Social API." The announcement describes it thus: "Much like the OpenSearch standard, the Social API enables developers to integrate social services into the browser in a way that is meaningful and helpful to users. As services integrate with Firefox via the Social API sidebar, it will be easy for you to keep up with friends and family anywhere you go on the Web without having to open a new Web page or switch between tabs. You can stay connected to your favorite social network even while you are surfing the Web, watching a video or playing a game."