Ad-blocker and Facebook?

[Koneko Yamazaki]

Ads had invaded my internet spaces. I installed an ad-blocker for Firefox about a half-hour ago, and all the ads have disappeared (even ones i was ok with having). However, upon trying to play with a Facebook app, I find it is no longer working. An ad always played before it would let me play. Is the ad-blocker causing the app to refuse my entry because I'm somehow not "paying" for it? How can I fix it (short of uninstalling or disabling the ad-blocker if possible)?
If it helps, I said f*ck it and moved on to Google Chrome. Everything got fixed. Thanks.