Toby - Better Than Bookmarks
Auto Tab Discard - Auto Tab Discard a lightweight extension that uses the native method (tabs.
Go to Tab - Manage your chrome tabs easily when you're multitasking
Firemin - Firemin will force Firefox to use less memory. It is safe to use, spyware free and completely free.
Tabbie - The missing tab manager for Chrome
BrightExplorer - Add a tabbed interface to Windows Explorer.