All browsers render differently. Firefox has been proved to be one of the best and most favored browser. However, sometimes targeting Firefox is just as necessary as targeting any other browsers.
Target Firefox 3
/* Target Firefox 3 */ .domtabs li a, x:-moz-any-link, x:default { padding:11px 0 12px 0; }
Target Firefox 2
/* Target Firefox 2 */ .domtabs li a, x:-moz-any-link { padding:11px 0 12px 0; }
Any Firefox
/*Any Firefox*/ @-moz-document url-prefix() { .selector { color:lime; } }
Firefox Rounded Conners
-moz-border-radius-bottomleft: 5px; -moz-border-radius-bottomright: 5px; -moz-border-radius-topleft: 5px; -moz-border-radius-topright: 5px;