The AdFreeVision extension, as its name suggests, once installed, will supposedly block advertisements on Youtube. However, this is not the case. AdFreeVision is found to be an adware that will incessantly display ads and will attempt to commandeer one’s browser search and homepage. These ads are usually in the form of fake software updates, surveys, sale coupons and banners. Clicking these advertisements will send you to malicious websites to get money from you or infect your computer further. It may also prevent you from changing your settings back.
AdFreeVision is usually installed through bundled software without you knowing. It has to be removed immediately.