Shows your Google Bookmarks in the sidebar, similar to your FireFox Bookmarks. You can use the star toolbar icon to toggle the sidebar(You might need to customize the toolbar to get the icon), or Alt+M, or by going to View>Sidebars>GMarks.
SessionSaver restores your browser -exactly- as you left it, every startup, every time. Not even a crash will phase it. Windows, tabs, even things you were typing — they’re all saved. Use the menu to add + remove sessions; right, shift, or middle-clicking will delete. "Simple mode" for peace of mind, or "Expert mode" for advanced flexibility.