diff --git a/firefox-autoupdate b/firefox-autoupdate
index d829371..bb62d53 100644
--- a/firefox-autoupdate
+++ b/firefox-autoupdate
@@ -1,5 +1,4 @@
 #!/bin/sh
-# gil
 FIREFOX_VERSION=$1
 ARCH=x86_64
 
@@ -16,4 +15,6 @@ cd firefox-$FIREFOX_VERSION
 wget -r -N -l 1 -np -nd -A "*.xpi" https://ftp.mozilla.org/pub/firefox/releases/$FIREFOX_VERSION/linux-$ARCH/xpi/
 rm -f robots.txt
 tar -cj *.xpi  > ../firefox-$FIREFOX_VERSION-langpacks.tar.bz2
-#rm -rf firefox-$FIREFOX_VERSION
+rm -f *.xpi
+cd ..
+rmdir firefox-$FIREFOX_VERSION
diff --git a/firefox.spec b/firefox.spec
index 4d679e5..bbf243f 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -17,7 +17,7 @@
 %define        pkgver %(echo %version | tr . _)
 
 Name:          firefox
-Version:       91.0.1
+Version:       91.0.2
 Release:       1mamba
 Epoch:         1
 Summary:       The next generation browsing technology from mozilla.org
@@ -160,7 +160,7 @@ This package contains the %{2} language support files for Firefox.\
 \
 %files langpack-%{1}\
 %defattr(-,root,root)\
-%{firefoxappdir}/browser/extensions/langpack-%{1}@firefox.mozilla.org.xpi
+%{firefoxappdir}/distribution/extensions/langpack-%{1}@firefox.mozilla.org.xpi
 
 %lang_subpkg ach Acholi
 %lang_subpkg af Afrikaans
@@ -172,11 +172,13 @@ This package contains the %{2} language support files for Firefox.\
 %lang_subpkg az Azerbaijani
 %lang_subpkg be Belarusian
 %lang_subpkg bg Bulgarian
+%lang_subpkg bn Bengali
 #% lang_subpkg bn-BD %{quote:Bengali (Bangladesh)}
 #% lang_subpkg bn-IN %{quote:Bengali (India)}
 %lang_subpkg br Breton
 %lang_subpkg bs Bosanski
 %lang_subpkg ca Catalan
+%lang_subpkg ca-valencia %{quote:Catalan (Valencia)}
 %lang_subpkg cak Kaqchikel
 %lang_subpkg cs Czech
 #% lang_subpkg csb Kashubian
@@ -249,6 +251,7 @@ This package contains the %{2} language support files for Firefox.\
 %lang_subpkg rm Rumantsch
 %lang_subpkg ro Romanian
 %lang_subpkg ru Russian
+%lang_subpkg sco Scots
 %lang_subpkg si %{quote:Sinhala (si-LK)}
 %lang_subpkg sk Slovak
 %lang_subpkg sl Slovenian
@@ -256,10 +259,13 @@ This package contains the %{2} language support files for Firefox.\
 %lang_subpkg sq Albanian
 %lang_subpkg sr %{quote:Српски (sr)}
 %lang_subpkg sv-SE Swedish
+%lang_subpkg szl Silesian
 #% lang_subpkg ta-LK %{quote:Tamil (Sri Lanka)}
 %lang_subpkg ta Tamil
 %lang_subpkg te %{quote:Telugu (IN)}
 %lang_subpkg th Thai
+%lang_subpkg tl %{quote:East Timor}
+%lang_subpkg trs Triqui
 %lang_subpkg tr Turkish
 %lang_subpkg ur Urdu
 %lang_subpkg uk %{quote:Ukrainian (UA)}
@@ -464,7 +470,8 @@ rm -rf %{buildroot}%{firefoxappdir}/firefox
 ln -s firefox-bin %{buildroot}%{firefoxappdir}/firefox
 
 # install langpacks
-install -d %{buildroot}%{firefoxappdir}/browser/extensions
+# see also: https://support.mozilla.org/en-US/kb/deploying-firefox-language-packs
+install -d %{buildroot}%{firefoxappdir}/distribution/extensions
 
 install -d firefox-langpacks && tar -C firefox-langpacks -xjf %{S:1}
 
@@ -472,7 +479,7 @@ find firefox-langpacks/ -type f -name \*.xpi | \
 while read filename; do
   lang=$(basename $filename .xpi)
   install -Dm644 $filename \
-    %{buildroot}%{firefoxappdir}/browser/extensions/langpack-$lang@firefox.mozilla.org.xpi
+    %{buildroot}%{firefoxappdir}/distribution/extensions/langpack-$lang@firefox.mozilla.org.xpi
 #  extensiondir="\
 #%{buildroot}%{firefoxappdir}/browser/extensions/langpack-$lang@firefox.mozilla.org"
 #  install -d $extensiondir
@@ -511,7 +518,7 @@ includedir=%{firefoxincludedir}
 
 Name: Mozilla Plug-In API
 Description: Mozilla Plug-In API
-Version: 91.0.1
+Version: 91.0.2
 
 Cflags: -I\${includedir} -DXP_UNIX
 _EOF
@@ -584,6 +591,7 @@ fi
 %{firefoxappdir}/browser/omni.ja
 %dir %{firefoxappdir}/distribution
 %{firefoxappdir}/distribution/distribution.ini
+%dir %{firefoxappdir}/distribution/extensions
 #%attr(644, root, root) %{firefoxappdir}/browser/blocklist.xml
 %dir %{firefoxappdir}/browser
 %dir %{firefoxappdir}/browser/chrome
@@ -591,9 +599,8 @@ fi
 %dir %{firefoxappdir}/browser/chrome/icons/default
 %{firefoxappdir}/browser/crashreporter-override.ini
 %attr(644, root, root) %{firefoxappdir}/browser/chrome/icons/default/default*.png
-%dir %{firefoxappdir}/browser/extensions
+#%dir %{firefoxappdir}/browser/extensions
 %{firefoxappdir}/browser/features/*.xpi
-%exclude %{firefoxappdir}/browser/extensions/langpack-*
 %{firefoxappdir}/firefox-bin
 #%{firefoxappdir}/chrome.manifest
 %{firefoxappdir}/libmozsandbox.so
@@ -632,6 +639,9 @@ fi
 %{_libdir}/pkgconfig/mozilla-plugin.pc
 
 %changelog
+* Wed Aug 25 2021 Automatic Build System <autodist@mambasoft.it> 91.0.2-1mamba
+- automatic version update by autodist
+
 * Wed Aug 18 2021 Automatic Build System <autodist@mambasoft.it> 91.0.1-1mamba
 - automatic version update by autodist