Annoyed by pop-up advertisements constantly interrupting your browsing? I'm not. I haven't seen one for many months. If a site tries to open a pop-up window, a small icon appears in my browser. If I want to allow the pop-up, such as for banking sites, I can click on that icon and allow that site to open pop-ups. And what miraculous tool do I use for this magic? The free Mozilla Firebird browser.