Close and Pin Tabs Keyboard Shortcuts is a free Chrome extension developed by miles.fitzsimons.developer. It falls under the Browsers category and specifically the Add-ons & Tools subcategory. This extension provides convenient keyboard shortcuts for closing and pinning tabs in Chrome.

With Close and Pin Tabs Keyboard Shortcuts, users can easily close tabs to the left or right of the current tab by using the Alt + Shift + Left Arrow or Alt + Shift + Right Arrow shortcuts respectively. Additionally, the Alt + Shift + Up Arrow shortcut allows users to quickly close all other tabs except the current one. The Alt + Shift + Down Arrow shortcut can be used to pin or unpin the current tab.

It is important to note that these keyboard shortcuts only affect tabs within the current window. The extension also offers a popup option to choose whether or not to close pinned tabs. For MacOS users, the 'Alt' key should be replaced with the 'Option' key when using these shortcuts.