Guess I'm stuck with ads. I'm too cheap to pay and dislike Google Chrome. I don't even notice the ad banners anyway.
Adblock works with Firefox, and there is probably a Safari version too.
I am not sure about the weird ones like Opera etc., and if you use IE after careful consideration of browser possibilities, you are stealing other people's oxygen.
No wonder I didn't notice the ad banners - there are none... I've got Adblock Plus with my Firefox. I downloaded it last year so I could stream movies/tv without annoying pop-ups and ads. Never even occurred to me that it's also blocking Chess.com ads.

"Sorry to take the opposing viewpoint here - but just what is it you all expect? Do you think chess.com magically gets computer time for free to put up this web site?"
Big thumbs up!!
"You can't steal a free service. It's free. Neither I, nor anyone else, agreed to view ads in exchange for playing chess here. "
Big thumbs down.
It's not a "free" service. It's a service granted to those who register in return for either viewing ads or paying for an upgrade. By blocking the ads you are breaking your side of the agreement.
Whether it matters practically or not really depends on how Chess.com collects revenue (by merely presenting the ads on the site or by click-through count). If they receive the revenue merely for showing the ads, they probably don't care if you block them - but that definitely doesn't make it okay to do so.
In fact, I'm clicking through to a "Shocking French Video" right now!!
-Mark R.