Smart Tab Closer

Smart Tab Closer is a simple Tab Management tool that helps you clear up your window with just a few clicks.
When you have a window with too many tabs, simply click the extension icon, choose the tabs you want to keep, then click 'Keep Checked' to close everything else. If you'd prefer to choose the ones you want to close instead, you simply click ' Close Checked Tabs' and you're all set.
There is a counter on the top of the panel to show you how many tabs you've closed since you started using the extension, just to give you a sense on whether or not the extension is helpful for you