Never again be bothered by pop-up windows while surfing the web. PopNot is an advanced pop-up advertisement suppressor that prevents annoying pop-up windows from appearing as you surf the web, with no need to set up for particular websites or keywords. PopNot prevents pop-up windows from ever appearing -- there's no need to wait while a new pop-up window appears and disappears; even more importantly, it won't incorrectly close new browser windows or interfere with web navigation. Useful pop-up windows can be allowed for particular websites by just right-clicking on the page and selecting "Allow Site's Pop-Ups", and PopNot can optionally display a visual and/or audio alert when it prevents a pop-up window from appearing. PopNot also has many other features and customizable functionality for advanced users.