Remove a taskbar add-on

Hi!!  Can you tell me how to remove a bar over my task bar on the bottom of he page?  It sometimes has ads and it has extra stuff that I do not want or need.

Also, on the on-line chess page over the games are 4 boxes for Chess Mentor, Tactics etc.  Do they remain or can they be removed?

Thanks in advance!!

Please elaborate more.

Do you mean the meebo thing?

Yes, thanks!!  I found how to get rid of Meebo.

Just go to your account. Thats good.

Yes, I found it in some previously asked questions. 

I guess if I look I would find answers to just about anything.

Thanks for your reply.