Helps you save your online workspace for later use
No more windows full of tabs that stay open because you're afraid to lose them. Save your current window and file it under a workspace name. The next time that you want to continue where you left off, simply open the workspace!
Prompt before downloading that says extension can read history is Google's way of saying that it can access any tab on an open window. The extension has no access to your history and has no analytics.