I’ve updated Liqube Night style I got from userstyle.org. The update fixed problems with mostly input elements background. File chooser hasn’t been fixed yet. Since userstyle.org is currently down, I posted it here.

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document url-prefix(http://), url-prefix(ftp://), url-prefix(file://), url-prefix(https://) {

* {
    background-color: #101010 !important;
    background-image: none !important;
    color: #bbbbbb !important;
}
a:link {
    color: #666486 !important;
}
a:visited {
    color: #5e5c8c !important;
}
a:hover,
a:active {
    color: #cb5c8c !important;
}

input[type=button],
input[type=submit],
input[type=reset] {
    background-color: #505050 !important;
    color: white !important;
    -moz-appearance: none !important;
    border-color: #202020 !important;
}
select,
textarea,
input[type=text],
input[type=password],
input[type=file] {
      background-color: black !important;
      -moz-appearance: none !important;
    color: white !important;
    border-color: #202020 !important;
    border: 1px solid #505050 !important;
}

}