The problem is these things are wide in the open and still it goes under AV vendors nose.This is like a browserlocker forcing you to install their addon (which probably does something malicious too)
Please crop images when posting them to show only the relevant information as they don’t easily fit within the forum layout without much scrolling. These massive images that are mostly blank are a pain.
I don’t use Chrome, Firefox has settings to help prevent sites install add-ons (Firefox > Options > Security), does Chrome not have something similar.