Read the topic "malicious content" post and noticed some members are using "adblock." I looked it up on ASK and found it can be downloaded for free on different sites, i.e. adblock.com; overapps.com; softonic.com; superblocker.com. The definition is: a browser extension in Mozilla Firefox that blocks ads that pop up. Does one have to subscribe to this Mozilla Firefox to get adblock? Any info would help because it is no annoying to constantly be xing out of those worrisome ads. Thanks in advance.