Comment 7 for bug 78661

If you look at the comments on http://www.gnome-look.org/content/show.php/Neutronium+Unity?content=59189 you will notice the following solution to the above problem, which I can confirm works for me with Ubuntu 8.04, Firefox 3b5, and the Neutronium Unity dark theme. It involves editing ~/.mozilla/firefox/<profile>/chrome/userContent.css :

--------------------------------

In order to work porperly with FF3 use this userContent.css instead of the provided one (I added -moz-appearance: none !important;):

input {
border: 2px inset white;
background-color: white;
color: black;
-moz-appearance: none !important;
}
textarea {
border: 2px inset white;
background-color: white;
color: black;
-moz-appearance: none !important;
}
select {
border: 2px inset white;
background-color: white;
color: black;
-moz-appearance: none !important;
}
input[type="radio"],
input[type="checkbox"] {
border: 2px inset white ! important;
background-color: white ! important;
color: ThreeDFace ! important;
-moz-appearance: none !important;
}
*|*::-moz-radio {
background-color: white;
-moz-appearance: none !important;
}
button,
input[type="reset"],
input[type="button"],
input[type="submit"] {
border: 2px outset white;
background-color: #eeeeee;
color: black;
-moz-appearance: none !important;
}
body {
background-color: white;
color: black;
display: block;
margin: 8px;
-moz-appearance: none !important;
}