Restore Firefox 32 context menu labels and remove icons

#context-back image,
#context-forward image,
#context-reload image,
#context-stop image,
#context-bookmarkpage image{
   display:none !important;
}
#context-navigation .menu-iconic-left {
   -moz-margin-start:14px !important; /*adjust this for your OS/theme*/
}
#context-back:after,
#context-forward:after,
#context-reload:after,
#context-stop:after,
#context-bookmarkpage:after{
   content: attr(aria-label) !important;
}
#context-navigation{
   -moz-box-orient: vertical !important;
}
#context-navigation > .menuitem-iconic {
  -moz-box-pack: start !important;
}