/* context menu */
@-moz-document url-prefix(chrome://browser/content/browser) {
  #context-viewsource
  {
    visibility: collapse !important;
    -moz-user-focus: ignore !important;
  }
}
@-moz-document url-prefix(chrome://browser/content/browser) {
  #bookmarksShowAll,
  #bookmarksShowAll *,
  #BMB_bookmarksShowAllTop,
  #BMB_bookmarksShowAllTop *,
  #BMB_bookmarksShowAll,
  #BMB_bookmarksShowAll *,
  #menu_unsortedBookmarks,
  #menu_unsortedBookmarks *,
  #BMB_unsortedBookmarks,
  #BMB_unsortedBookmarks *,
  #helpSafeMode,
  #helpSafeMode *
,
  #webDeveloperMenu,
  #developer-button,
  #webDeveloperMenu,
  #browserToolsMenu,
  #appMenu-more-button2
  {
    display:none !important;
  }
}