I know you and I love Firefox so much these days… when did you last used that browser from Microsoft called Internet Explorer? Last year?… haha!
Firefox is so cool, but it will be cooler if you play this nifty little Firefox trick on your friends. This fun trick is simple, it opens multiple Firefox windows inside of your main Firefox window! All you have to do is enter the following URL in your Firefox address bar:
chrome://browser/content/browser.xul
This will open up a new Firefox window inside the main window. Repeat the same with the inner Firefox window, and you will have a new Firefox window inside the main one…
Play this trick on your friends, and let them thought they have got a Firefox virus attack!