Does anyone know what this transparent box thing in my browser is? Appears on Chrome & Brave. Only on some pages, not all.

It's like transparent layer or something like that. When it's there I'm having issues selecting text.

I've cleared cache & cookies. Ran Malwarebytes. Restated my Mac. 

Still there. 🤷‍♂️

Founder @Otherstate: Launch, Pivot, Rebrand your Early-Stage Startup. ██ || www.otherstate.com

Ok, disabling all extensions seems to have done the trick. 

Now to figure out which one it was. 🙄