diff --git a/packages/sogo-addons.xml b/packages/sogo-addons.xml
index 97db087..2c6b9e9 100644
--- a/packages/sogo-addons.xml
+++ b/packages/sogo-addons.xml
@@ -3,7 +3,7 @@
 <packages>
     <package id="sogo-addons"
              name="Addons SOGo"
-             revision="1"
+             revision="2"
              reboot="false"
              priority="10">
 
@@ -17,26 +17,33 @@
         <depends package-id="lightning" />
 
         <variable name="PKG_VERSION" value="10.0.3" />
+        <variable name="STARTUPMASTER_VERSION" value="1.3" />
         <variable architecture="x86" name="INSTALL_PATH" value="%PROGRAMFILES%\Mozilla Thunderbird\distribution\bundles" />
         <variable architecture="x64" name="INSTALL_PATH" value="%PROGRAMFILES(x86)%\Mozilla Thunderbird\distribution\bundles" />
 
         <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\sogo-connector\install.rdf" | find /I "em:version=" | find "%PKG_VERSION%"' condition="exitcodeequalto" value="0" />
         <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\sogo-integrator\install.rdf" | find /I "em:version=" | find "%PKG_VERSION%"' condition="exitcodeequalto" value="0" />
+        <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\startupmaster\install.rdf" | find /I "em:version=" | find "%STARTUPMASTER_VERSION%"' condition="exitcodeequalto" value="0" />
 
         <install include="remove" />
         <install cmd='%COMSPEC% /C if not exist "%INSTALL_PATH%\sogo-connector" mkdir "%INSTALL_PATH%\sogo-connector"' />
         <install cmd='"%SOFTWARE%\7zip\unzip.bat" "%SOFTWARE%\thunderbird_addons\sogo-connector-%PKG_VERSION%.xpi" "%INSTALL_PATH%\sogo-connector"' />
         <install cmd='%COMSPEC% /C if not exist "%INSTALL_PATH%\sogo-integrator" mkdir "%INSTALL_PATH%\sogo-integrator"' />
         <install cmd='"%SOFTWARE%\7zip\unzip.bat" "%SOFTWARE%\thunderbird_addons\sogo-integrator.xpi" "%INSTALL_PATH%\sogo-integrator"' />
+        <install cmd='%COMSPEC% /C if not exist "%INSTALL_PATH%\startupmaster" mkdir "%INSTALL_PATH%\startupmaster"' />
+        <install cmd='"%SOFTWARE%\7zip\unzip.bat" "%SOFTWARE%\thunderbird_addons\startupmaster-%STARTUPMASTER_VERSION%-fx+tb.xpi" "%INSTALL_PATH%\startupmaster"' />
 
         <upgrade include="install" />
 
+        <downgrade include="install" />
+
         <remove cmd='taskkill /F /IM thunderbird.exe'>
             <exit code="0" />
             <exit code="128" />
         </remove>
         <remove cmd='%COMSPEC% /C if exist "%INSTALL_PATH%\sogo-connector" del /Q /F "%INSTALL_PATH%\sogo-connector"' />
-        <remove cmd='%COMSPEC% /C if exist "%INSTALL_PATH%\sogoo-integrator" del /Q /F "%INSTALL_PATH%\sogo-integrator"' />
+        <remove cmd='%COMSPEC% /C if exist "%INSTALL_PATH%\sogo-integrator" del /Q /F "%INSTALL_PATH%\sogo-integrator"' />
+        <remove cmd='%COMSPEC% /C if exist "%INSTALL_PATH%\startupmaster" del /Q /F "%INSTALL_PATH%\startupmaster"' />
 
     </package>
 </packages>
diff --git a/softwares/startupmaster-1.3-fx+tb.xpi b/softwares/startupmaster-1.3-fx+tb.xpi
new file mode 100644
index 0000000..bf40115
Binary files /dev/null and b/softwares/startupmaster-1.3-fx+tb.xpi differ