#emptyDownloads,
#downloadsListBox richlistitem,
#downloadsFooter button {
  padding-block: 0.7em !important;
  padding-inline: 10px !important;
  margin-block: 2px !important;
  margin-inline: var(--tab-block-margin) !important;
}

#downloadsFooter button {
  border: 0 !important;
}
#downloadsPanel-blockedSubview,
#downloadsPanel-mainView {
  padding: 0 !important;
}
#downloadsListBox richlistitem button.downloadButton {
  min-width: 1em !important;
}