Firefox and fonts ?

I am having trouble displaying the font Helvetica is FF. Are there any known issues and is there a resource which list fonts supported by FF and IE? I am using FF 2.0 and IE 7.0.

.gallery_Headertext {
	font-family: Helvetica, Arial, sans-serif, Trebuchet MS;
	font-size: 17px;
	/*font-weight: bold;*/
	text-decoration: none;
	color: #222222;
	padding: 5px 0px 0px 10px; /*top-right-bottom-left*/	
}

Code (markup):

 

try other fonts is it displaying..?

 

There should be no problems with displaying fonts in both: FX and IE.

Just remember that web browsers can only display fonts that user / visitor has currently installed @ his / hers system. you can not "send" font from website to the visitor. This feature should be available with CSS3 (at least it's planned there).. but firstly - the specification has to be finished, and secondly - leading web browsers have to support it in that manner..

So if no Helvetica is installed in the system - Fx will skip that declaration and display content using another font.. if that one's also unavailable - skip to another, and so one - until it finds "anything"..
So in this case: Fx would skip from Helvetica --> Arial --> sans-serif --> Trebuchet MS

P.S.
please try adding " and " in multi-words-font-names

font-family: Helvetica, Arial, sans-serif, "Trebuchet MS";

Code (markup):

Kindly regards,
L.