minimalist style for riot.im … no longer effective?

@-moz-document domain("riot.im") {
    .mx_RoomTile_avatar {
        display: none !important;
    }
    .mx_RoomHeader_avatar {
        display: none !important;
    }
    .mx_EventTile_avatar {
        display: none !important;
    }
    .mx_UserPill .mx_BaseAvatar {
        display: none !important;
    }
    .mx_UserPill {
        height: 1;
        line-height: 1;
        border-radius: 3px;
        border: none;
        background: rgb(0, 0, 0) !important;
        padding: .2em;
    }
    .linkified {
        color: rgb(0, 255, 255) !important;
    }
}