How to block sites?
Hi. I keep receiving pop-ups from only a few certain sites (which I do not remember visiting ever...they're not vulgar, but they ARE annoying... Ex: travel agencies, "free" offers, etc.) Anyhow, I am using Mozilla Firefox (and before you tell me to switch browsers, please be aware that I'm not going to, sorry!) is there any way to block a certain site? I know that Internet Explorer had something like that, but I can't find it on Firefox. Any help would be appreciated. Thanks.