Addon refuses to make shorten on some sites due to "Error: This URL contains blacklisted keywords." Have no idea why author decided that huge online marketplace contain anything bad in url, but i certanly can't recommend to use it as addon can fail you at any moment for reasons known only to developer.

This shortens my URL instantly with a single click and at the same time copies it to the clipboard. It also uses some filters for bad URLs. The shortened link has a splash page and redirects you in just 3 seconds, it may save your links from being blocked by spam on the social media pages. Highly recommended!