Text Is A Different Color In Firefox???

Okay so if having some issues with Firefox. The text in my posts, post excerpts, comments and users name is suppose to be black but in Firefox its white and you can’t see it because the background is white. It displays fine in all other browsers even my phone but Firefox just wil not change it to black. Iv tried putting my post information in an HTML font color block to make it back but still nothing. Is there something in the style.CSS I should change or what? Everything else is fine just makes ceryian text white. Thanks for any help

The link to it is VideoRapture.com/VideoGallery