Google+ Extreme Button is a free Chrome add-on developed by Akicansoft. This handy tool expands the functionality of Google+ by integrating it with various social media platforms and providing additional features. With this add-on, users can seamlessly share their Google+ posts on Hatena Bookmarks, Delicious, Twitter, Evernote, Facebook, and Tumblr.

In addition to social media integration, Google+ Extreme Button offers useful features such as opening and downloading images from Google+, as well as enabling the Scroll Lock function. These features enhance the user experience by allowing easy access to images and providing a convenient way to navigate through Google+ content.

Overall, Google+ Extreme Button is a valuable add-on for Chrome users who want to enhance their social media experience and streamline their Google+ usage. With its seamless integration and additional features, this add-on provides a convenient and efficient way to interact with Google+ and other social media platforms.