Here’s the summary for the wikipedia article you mentioned in your comment:

Rockmelt is a discontinued proprietary social media web browser developed by Tim Howes and Eric Vishria based on the Google Chromium project, incorporating social media features such as Facebook chat, Twitter notifications and widgetised areas for other content providers such as YouTube and local newspapers. The Rockmelt web browser project was backed by Netscape founder Marc Andreessen. In April 2013, Rockmelt discontinued its desktop web browser, replacing it with a collaborative project bringing together social elements from various sources. Rockmelt was created by Rockmelt, Inc. , located in Mountain View, California.

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