Provide x64 build

packages/firefox.xml

@@ -2,14 +2,12 @@
 <packages>
     <package id="firefox"
              name="Mozilla Firefox"
-             revision="69"
+             revision="70"
              reboot="false"
              priority="10">
 
         <variable name="PKG_VERSION" value="52.4.1" />
         <variable name="VARIANTE" value="esr" />
-        <variable architecture="x86" name="INSTALL_PATH" value="%PROGRAMFILES%\Mozilla Firefox" />
-        <variable architecture="x64" name="INSTALL_PATH" value="%PROGRAMFILES(x86)%\Mozilla Firefox" />
 
         <check type="uninstall" condition="versiongreaterorequal" path="Mozilla Firefox .+" value="%PKG_VERSION%" />
 
@@ -18,12 +16,13 @@
             <exit code="-1073741515" />
             <exit code="128" />
         </install>
-        <install cmd='"%SOFTWARE%\firefox\Firefox Setup %PKG_VERSION%%VARIANTE%.exe" -ms' />
+	<install architecture="x86" cmd='"%SOFTWARE%\x86\firefox\Firefox Setup %PKG_VERSION%%VARIANTE%.exe" -ms' />
+	<install architecture="x64" cmd='"%SOFTWARE%\x64\firefox\Firefox Setup %PKG_VERSION%%VARIANTE%.exe" -ms' />
         <!-- Empeche l'affichage d'un message d'erreur lors de l'ouverture d'une URL depuis un fichier .bat --> 
         <install cmd='%COMSPEC% /C reg add "HKCR\FirefoxURL\shell\open\ddeexec" /v "" /t REG_SZ /d "" /f' />
 
         <upgrade include="install" />
 
-        <remove cmd='%COMSPEC% /C if exist "%INSTALL_PATH%\uninstall\helper.exe" "%INSTALL_PATH%\uninstall\helper.exe" -ms' /> 
+        <remove cmd='%COMSPEC% /C if exist "%PROGRAMFILES%\Mozilla Firefox\uninstall\helper.exe" "%PROGRAMFILES%\Mozilla Firefox\uninstall\helper.exe" -ms' /> 
     </package>
 </packages>