Paste and Go 2 - Useful paste and go, paste and search added to search and location bar context menu. Firefox Showcase - Shows tabs as thumbnails, to preview, manage and search across them. Tab Groups - Lets a user organize tabs into groups. Tab Flick - A different way to move tabs between windows. Tab Click Options - Let's you select an action to perform with different clicking events on the tab bar or a tab Split Pannel - Open panel to left, bottom or right (left, middle, right click) with current URL from Split on context menu. Split Browser - Splits the content area of the browser window as you like. Status of split browsers are saved, and automatically restored on the next startup. SubmitToTab - Direct the submission of a form to a new tab. Multiple Tab Handler - Adds the ability of select multiples tabs at once by dragging the mouse. Features close, reload, bookmark, duplicate tabs or copy URIs commands. Tab Kit - Makes tabs more efficient for power users, bringing tab grouping, and tweaks such as multiple rows of tabs or displaying tabs as a tree. Tree Style Tab - This provides tree-style tab bar, like a folder tree of Windows Explorer. New tabs opened from links are automatically attached to the parent tab. If you often use many many tabs, it will help your web browsing because you can understand relations of tabs. LastTab - Allows tab navigation in a most recently used manner. Tab Mix Plus - Enhances Firefox's tab browsing capabilities with lots of options.