Sidewise is a Google Chrome add-on that provides a dockable vertical sidebar with tree style tabs and various other features.
Besides accessing your tabs from a vertical sidebar, you will also be able to write down notes, put tabs to sleep as well as to restore browsing sessions.
Sidewise is cross-platform and it works on Mac OS X, Windows and Linux.
NOTE: To install the Sidewise extension, drag and drop the downloaded .crx file onto the Chrome Extensions window.
Here are some key features of "Sidewise":
· Tree Style Tabs
· Tab Hibernation
· Multiple sidebar panes
· Other extra features
· Google Chrome