diff --git a/.cvsignore b/.cvsignore
index cf8d0cf..ef1a218 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1,2 @@
-firefox-3.1b3-source.tar.bz2
+firefox-3.5b4-source.tar.bz2
+firefox-langpacks-3.5-20090427.tar.bz2
diff --git a/firefox.spec b/firefox.spec
index 523dfce..4380b6c 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -5,11 +5,11 @@
 %define mozappdir            %{_libdir}/%{name}-%{internal_version}
 %define tarballdir mozilla-1.9.1
 
-%define gecko_version 1.9.1-0.11
-%define internal_version 3.1b3
+%define gecko_version 1.9.1-0.20
+%define internal_version 3.5b4
 
 %define official_branding    1
-%define build_langpacks      0
+%define build_langpacks      1
 
 %if ! %{official_branding}
 %define cvsdate 20080327
@@ -18,19 +18,19 @@
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        3.1
-Release:        0.11.beta3%{?dist}
+Version:        3.5
+Release:        0.20.beta4%{?dist}
 URL:            http://www.mozilla.org/projects/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
 %if %{official_branding}
 %define tarball firefox-%{internal_version}-source.tar.bz2
 %else
-%define tarball firefox-3.1b3-source.tar.bz2
+%define tarball firefox-3.1b4-source.tar.bz2
 %endif
 Source0:        %{tarball}
 %if %{build_langpacks}
-Source2:        firefox-langpacks-%{version}-20080923.tar.bz2
+Source2:        firefox-langpacks-%{version}-20090427.tar.bz2
 %endif
 Source10:       firefox-mozconfig
 Source11:       firefox-mozconfig-branded
@@ -321,6 +321,9 @@ fi
 #---------------------------------------------------------------------
 
 %changelog
+* Mon Apr 27 2009 Christopher Aillon <caillon@redhat.com> - 3.5-0.20
+- 3.5 beta 4
+
 * Fri Mar 27 2009 Christopher Aillon <caillon@redhat.com> - 3.1-0.11
 - Rebuild against newer gecko
 
diff --git a/sources b/sources
index ee952f6..efe47e5 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
-61cd1a7fc587f6d2a33c564033198e2c  firefox-3.1b3-source.tar.bz2
+ff6bf463300cb56bcf750973b2af3d80  firefox-3.5b4-source.tar.bz2
+ea9b2b8e3ecbf5eb4245d26546211ba6  firefox-langpacks-3.5-20090427.tar.bz2