it keeps the advertisements that automatically open such as the cursor ads from coming up. these adds are called 'pop ups' because they open automatically without any prompt from you.
Pop Up Blockers prevents pop-ups, windows that usually have advertisements in them, from appearing.
Use Popup Blocker in your browser[tools/Settings]
A spam popup blocker prevents ads from popping up in new windows on a users browser. The spam popup blocker first appeared on the internet scene in the mid 1990's.
When researching the best popup blocker available, I found many options. Some people prefer Ad Block, while others use there search engine toolbar application.
add att.net mail to popup blocker's list.
JavaScript maybe
Use a third-party pop-up blocker such as Adblocker or Malwarebytes.
Namo CyberFence 2.0 is a Popup Blocker product from namo.com.
Either you need a different pop up blocker or you have certain sites that you have allowed pop ups in the past. Check in your setting to see if you have allowed sites.
Open Internet Explorer. Then click Tools>>Pop up blocker>> Turn on pop blocker
Probably because your computer is not protected by anti-popup blocker,
Make sure you have a program that has popup blocker and make sure it is on.
A popup is a window or advertisement that appears on your screen while browsing the internet. This tends to happen more in Internet Explorer. Popups can be rid of by installing a Popup Blocker.