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diff --git a/documents/macos/enigmail_installation/enigmail_installation.lyx b/documents/macos/enigmail_installation/enigmail_installation.lyx
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--- /dev/null
+++ b/documents/macos/enigmail_installation/enigmail_installation.lyx
@@ -0,0 +1,386 @@
+#LyX 1.4.3 created this file. For more info see http://www.lyx.org/
+\lyxformat 245
+\begin_document
+\begin_header
+\textclass article
+\begin_preamble
+\usepackage{hyperref}
+\usepackage{html}
+\usepackage{german}
+\end_preamble
+\language ngerman
+\inputencoding auto
+\fontscheme default
+\graphics default
+\paperfontsize default
+\spacing single
+\papersize default
+\use_geometry false
+\use_amsmath 1
+\cite_engine basic
+\use_bibtopic false
+\paperorientation portrait
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation skip
+\defskip medskip
+\quotes_language english
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tracking_changes false
+\output_changes true
+\end_header
+
+\begin_body
+
+\begin_layout Standard
+\begin_inset Note Note
+status open
+
+\begin_layout Standard
+MacOS und Windows-Anleitung
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Include \input{titlebar.inc}
+preview false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Include \input{menue.inc}
+preview false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+begin{rawhtml}
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+<!-- main starts here -->
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+<div id="main">
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+
+\backslash
+end{rawhtml}
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Title
+Enigmail installieren
+\end_layout
+
+\begin_layout Author
+E-Mails verschlüsseln
+\end_layout
+
+\begin_layout Subsection
+Installationsschritte
+\end_layout
+
+\begin_layout Standard
+Klicke mit der rechten Maustaste auf diese 
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+htmladdnormallink{Datei}{../../../programme/enigmail-0.94.3-tb15-win+lin+mac.xpi}
+\end_layout
+
+\end_inset
+
+ und speichere sie in einem Verzeichnis auf deiner Festplatte.
+ Öffne anschließend Thunderbird und wähle aus dem Menü den Punkt 
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+begin{rawhtml}
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+<span class="kbd">
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+
+\backslash
+end{rawhtml}
+\end_layout
+
+\end_inset
+
+Extras -> Erweiterungen...
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+begin{rawhtml}
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+</span>
+\end_layout
+
+\begin_layout Standard
+
+\end_layout
+
+\begin_layout Standard
+
+
+\backslash
+end{rawhtml}
+\end_layout
+
+\end_inset
+
+:
+\end_layout
+
+\begin_layout Standard
+\begin_inset Float figure
+wide false
+sideways false
+status open
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename bilder/thunderbird_menue_extras_erweiterungen.png
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Caption
+Unter 
+\emph on
+Extras
+\emph default
+ den Punkt 
+\emph on
+Erweiterungen...
+
+\emph default
+ auswählen
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Es öffnet sich ein neues Fenster mit dem Titel 
+\emph on
+Erweiterungen
+\emph default
+.
+ Klicke dort auf die Schaltfläche 
+\emph on
+Installieren
+\emph default
+:
+\end_layout
+
+\begin_layout Standard
+\begin_inset Float figure
+wide false
+sideways false
+status open
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename bilder/installation/em_installation02.png
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Caption
+Ein Klick auf 
+\emph on
+Installieren
+\emph default
+ bringt dich weiter
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Nun erscheint ein Fenster mit der Verzeichnisansicht deiner Festplatte.
+ Wähle die Enigmail-Installationsdatei aus dem entsprechenden Verzeichnis
+ aus:
+\end_layout
+
+\begin_layout Standard
+\begin_inset Float figure
+wide false
+sideways false
+status open
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename bilder/enigmail_installation03.png
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Caption
+Die entsprechende Datei auswählen.
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Bestätige anschließend die Installation:
+\end_layout
+
+\begin_layout Standard
+\begin_inset Float figure
+wide false
+sideways false
+status open
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename bilder/enigmail_installation04.png
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Caption
+Die Installation startet mit einem Klick auf 
+\emph on
+Jetzt installieren
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Damit die Oberfläche von Enigmail auch in Deutsch erscheint, muss die Sprachdate
+i 
+\emph on
+
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+htmladdnormallink{enigmail-de-0.9x.xpi}{../../../programme/enigmail-de-0.9x.xpi}
+\end_layout
+
+\end_inset
+
+ 
+\emph default
+ebenfalls installiert werden.
+ Die Installation läuft genau wie oben beschrieben ab.
+\end_layout
+
+\begin_layout Standard
+Abschließend muss Thunderbird beendet und neu gestartet werden.
+ Das die Installation erfolgreich verlaufen ist, siehst du nun am neuen
+ Punkt 
+\emph on
+OpenPGP
+\emph default
+ im Thunderbird-Menü.
+\end_layout
+
+\begin_layout Standard
+\begin_inset Include \input{progress/email_programme.inc}
+preview false
+
+\end_inset
+
+
+\end_layout
+
+\end_body
+\end_document