Alternatively, you might want to import some information from a database site - see Fansites for listings.
Fire and Brimstone
Increases the damage done by your Incinerate and Chaos Bolt spells to targets affected by your Immolate spell by X% and the critical strike chance of your Conflagrate spell is increased by Y%
Increases the damage done by your Incinerate and Chaos Bolt spells to targets affected by your Immolate spell by X% and the critical strike chance of your Conflagrate spell is increased by Y%
Fire and Brimstone is a talent in the Destruction tree, you will need to spend 50 points in Destruction to max it.
Patch 3.2.0 (2009-08-04): Reduced to 2/4/6/8/10% increased damage from Incinerate and Chaos Bolt on targets afflicted with Immolate, down from 3/6/9/12/15%.
Patch 3.1.2 (2009-05-19): No longer increases the damage of your Immolate spell, but now increases the bonus damage your Incinerate deals to targets afflicted by your Immolate by 6/12/18/24/30%.
Edit
Patch 3.2.0 (2009-08-04): Reduced to 2/4/6/8/10% increased damage from Incinerate and Chaos Bolt on targets afflicted with Immolate, down from 3/6/9/12/15%. 
