overlay chrome://messenger/content/mailWindowOverlay.xul chrome://removeduplicates/content/removeduplicates.xul content removeduplicates jar:chrome/removeduplicates.jar!/content/removeduplicates/ locale removeduplicates en-US jar:chrome/removeduplicates.jar!/locale/en-US/removeduplicates/ locale removeduplicates de-DE jar:chrome/removeduplicates.jar!/locale/de-AT/removeduplicates/ locale removeduplicates de-DE jar:chrome/removeduplicates.jar!/locale/de-CH/removeduplicates/ locale removeduplicates de-DE jar:chrome/removeduplicates.jar!/locale/de-DE/removeduplicates/ locale removeduplicates de-DE jar:chrome/removeduplicates.jar!/locale/de-LI/removeduplicates/ locale removeduplicates de-LU jar:chrome/removeduplicates.jar!/locale/de-LU/removeduplicates/ locale removeduplicates ja-JP jar:chrome/removeduplicates.jar!/locale/ja-JP/removeduplicates/ locale removeduplicates fr-FR jar:chrome/removeduplicates.jar!/locale/fr-FR/removeduplicates/ locale removeduplicates es-ES jar:chrome/removeduplicates.jar!/locale/es-ES/removeduplicates/ locale removeduplicates it-IT jar:chrome/removeduplicates.jar!/locale/it-IT/removeduplicates/ locale removeduplicates nl-NL jar:chrome/removeduplicates.jar!/locale/nl-NL/removeduplicates/