menuitem[label="Web Search"],
menuitem[label="Web Search"] + menuseparator,
menuitem[command="Browser:ReadMail"],
menuitem[label="New Message..."],
menuitem[label="Open Link in New Window"],
menuitem[label="Open Link in New Tab"],
#contentAreaContextMenu #context-sep-open,
#contentAreaContextMenu #context-bookmarklink,
#contentAreaContextMenu #context-savelink,
menuitem[label="Context-bookmarklink"],
menuitem[label="context-savelink"],
menuitem[label="Forward"],
menuitem[label="For Internet Explorer Users"],
#context-sendlink, 
#context-sendpage,
#context-sendimage,
#contentAreaContextMenu #context-sep-properties,
menuitem[label="View Background Image"],
#contentAreaContextMenu #context-sep-bidi,
menuitem[label="View Page Info"],
menuitem[label="View Page Source"],
menuitem[label="Send Image..."],
#context-setDesktopBackground,
menuitem[label^="Block Images from"] {
display: none !important;
}