Frozen Shadoweave - Stupid Question...Follow

When using a frozen shadoweave set which heals you for 2% of all the frost and shadow damage you deal, is there any way of stopping the big green numbers flashing up in front of your character every second?

Same goes for mana tap. Although this isn't used on almost every spell and is kinda handy.

Is there an interface option or a add on I can use?

Thanks.

Thanks. :)