Arial Black is available.

To change fonts, click the orange Firefox button, go to Options | Options | Content.

In the Fonts & Colors menu, click the Advanced button. You can change the existing settings to whatever you wish. Also, uncheck "Allow pages to choose their own fonts..."

I'm not using Arial myself, but the screenshot serves as an illustration.

I have been going into options and trying different font styles and the version I'm using only has arial, no arial black

BTW: THANX

All the font menus have Arial Black except the top one. See Screenshot.

EDIT: You could also try using this add-on: https://addons.mozilla.org/en-US/firefox/addon/theme-font-size-changer/

I'm sorry but there is NO arial black in my options. I using 4.0.1 version

OK, try using the add-on I mentioned above.

OK,Thanks for your help! I can read now!

You're welcome.

Could you please click the "Solved It" button to take your post out of the loop?

Thanks.

OK and THANKS again!