SPECIAL RULES according to Mordheimer:

The fire bomb may be thrown in the shooting phase in the same way as blessed water (see p53 Mordheim rule book). If the bomb lands on target the warrior hit takes D3 Strength 4 hits with no saves for armour and all warriors, friend or foe, within 1 inch of him take 1 Strength 3 hit with saves as normal. If the throwing warrior rolls a 1 when rolling to hit the bomb misfires and explodes just as if the throwing warrior had been hit by his own fire bomb!

QUESTION:
So normally it is mentioned in the rules text when an item is one use only.
Am I correct in assuming I can buy firebombs once and get the chance to set my opponents or myself on fire each game?