ytmaxthumb

Adds a context menu option to open a larger version of a YouTube video thumbnail in a new tab.

How to install

Download the latest version.
Extract this somewhere on your computer.
Go to chrome://extensions in your browser.
Turn Developer mode on.
Click the Load unpacked button and select the folder where you extracted the files to earlier.
Enable the extension.
Go to YouTube.
Right click any thumbnail and click Open larger thumbnail in new tab.