UL extension is a free Chrome add-on developed by Florian LEFEBVRE. As an add-on in the Browsers category, UL extension falls under the subcategory of Add-ons & Tools. This extension displays three "UL" texts in the screen corners, with one of them randomly chosen.

One of the convenient features of UL extension is that the "UL" texts are hidden when the mouse cursor is near, which prevents any inconvenience when interacting with webpages, such as closing modals. This ensures a seamless browsing experience without any distractions.

Overall, UL extension is a simple yet handy add-on for Chrome users who want to display "UL" texts on their screen. With its easy installation and intuitive functionality, users can enjoy this awesome extension without any hassle.