Notification-browser.com (v1, v2, v3.notification-browser.com etc) is hazardous site, that displays ads, pop-ups and notifications in Safari, Google Chrome, Mozilla Firefox, Internet Explorer or Edge. If you see advertisements from Notification-browser.com while browsing certain sites, it means those sites use bad-quality advertising or they are hacked. This can be fixed by installing ad-blocking software, like AdGuard (see description below). If you see notifications from Notification-browser.com, it means website is allowed to show them in browser settings. In this situation, you need to check your PC for viruses and follow instructions below.