John runs Microsoft Windows 7 and Firefox, but pop -ups are driving him crazy – fortunately there are some free things he can do to make things. How to Close an Internet Pop Up. If an unexpected pop - up ad appears as you're browsing the web, you can usually close it by clicking the "X" at its top right. With popup builder plugin you can insert any type of content, right into your Popup. Insert your pop - up into any page or a post, easily and fast. Popups that open. Another option for Opera users is to download and install one of the Opera extensions for blocking advertisements. As far as the popup accessibility on different devices is freely manageable too, the popup is quite responsive and is resized accordingly. It may be more difficult to find a close slot machine with best odds on devices with smaller screens. Finally, you are able to share your material with all the social media given or only the ones you prefer. Write an Article Request a New Article Answer a Request More Ideas Each add-on has buttons for Options, Disable and Remove. If you still see advertising on your Mac, contact Apple.