diff --git a/.gitignore b/.gitignore
index e1b567c..3318613 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1 @@
-libproxy-0.4.4.tar.gz
-/libproxy-0.4.5.tar.gz
-/libproxy-0.4.6.tar.gz
-/libproxy-0.4.7svn20110412.tar.gz
-/libproxy-0.4.7.tar.gz
+/libproxy-0.*.tar.gz
diff --git a/libproxy-0.4.7-js185.patch b/libproxy-0.4.7-js185.patch
new file mode 100644
index 0000000..4eb5bf3
--- /dev/null
+++ b/libproxy-0.4.7-js185.patch
@@ -0,0 +1,29 @@
+--- libproxy-0.4.7/libproxy/cmake/modules/pacrunner_mozjs.cmk.orig	2012-02-26 18:58:07.249934499 +0000
++++ libproxy-0.4.7/libproxy/cmake/modules/pacrunner_mozjs.cmk	2012-02-26 18:59:30.989922729 +0000
+@@ -7,19 +7,15 @@
+     include_directories("${MOZJS_INCLUDE_DIR}")
+   endif()
+ elseif(NOT APPLE)
+-  set(MOZJS_SEARCH_ORDER "mozilla-js;xulrunner-js;firefox-js;seamonkey-js" CACHE STRING "MozJS search order")
+   option(WITH_MOZJS "Search for MOZJS package" ON)
+   if (WITH_MOZJS)
+-    foreach(MOZJSLIB ${MOZJS_SEARCH_ORDER})
+-      pkg_search_module(MOZJS ${MOZJSLIB}>=2.0b12)
+-      if(MOZJS_FOUND)
+-        include_directories(${MOZJS_INCLUDE_DIRS})
+-        link_directories(${MOZJS_LIBRARY_DIRS})
+-        break()
+-      else()
+-        set(MOZJS_FOUND 0)
+-      endif()
+-    endforeach()
++    pkg_search_module(MOZJS mozjs185>=1.8.5)
++    if(MOZJS_FOUND)
++      include_directories(${MOZJS_INCLUDE_DIRS})
++      link_directories(${MOZJS_LIBRARY_DIRS})
++    else()
++      set(MOZJS_FOUND 0)
++    endif()
+   else()
+     set(MOZJS_FOUND 0)
+   endif()
diff --git a/libproxy-0.4.7-url-pac.patch b/libproxy-0.4.7-url-pac.patch
new file mode 100644
index 0000000..98b64e5
--- /dev/null
+++ b/libproxy-0.4.7-url-pac.patch
@@ -0,0 +1,11 @@
+--- libproxy-0.4.7/libproxy/url.cpp.orig	2012-02-26 19:04:10.670952501 +0000
++++ libproxy-0.4.7/libproxy/url.cpp	2012-02-26 19:04:54.474963813 +0000
+@@ -446,7 +446,7 @@
+ 		/* Check for correct mime type and content length */
+ 		for (line = recvline(sock) ; line != "\r" && line != "" ; line = recvline(sock)) {
+ 			// Check for chunked encoding
+-			if (line.find("Content-Transfer-Encoding: chunked") == 0)
++			if (line.find("Content-Transfer-Encoding: chunked") == 0 || line.find("Transfer-Encoding: chunked") == 0)
+ 				chunked = true;
+ 
+ 			// Check for content length
diff --git a/libproxy-0.4.7-xul2.0.patch b/libproxy-0.4.7-xul2.0.patch
deleted file mode 100644
index 9f0f85f..0000000
--- a/libproxy-0.4.7-xul2.0.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up libproxy-0.4.7/libproxy/cmake/modules/pacrunner_mozjs.cmk.xul libproxy-0.4.7/libproxy/cmake/modules/pacrunner_mozjs.cmk
---- libproxy-0.4.7/libproxy/cmake/modules/pacrunner_mozjs.cmk.xul	2011-03-22 23:54:22.000000000 +0100
-+++ libproxy-0.4.7/libproxy/cmake/modules/pacrunner_mozjs.cmk	2011-04-12 15:28:55.235341002 +0200
-@@ -11,7 +11,7 @@ elseif(NOT APPLE)
-   option(WITH_MOZJS "Search for MOZJS package" ON)
-   if (WITH_MOZJS)
-     foreach(MOZJSLIB ${MOZJS_SEARCH_ORDER})
--      pkg_search_module(MOZJS ${MOZJSLIB}>=2.0b12)
-+      pkg_search_module(MOZJS ${MOZJSLIB} >=2.0 )
-       if(MOZJS_FOUND)
-         include_directories(${MOZJS_INCLUDE_DIRS})
-         link_directories(${MOZJS_LIBRARY_DIRS})
diff --git a/libproxy.spec b/libproxy.spec
index 7700b1f..7779fa5 100644
--- a/libproxy.spec
+++ b/libproxy.spec
@@ -1,40 +1,30 @@
-%{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
 
 #0 to bootstrap libproxy circle dependencies - 1 normal case
 %if 1
-%if 0%{?fedora} > 14
-%global gecko_version 2.0
 %global _with_webkitgtk3 1
 %global _with_gnome3 1
-%else
-%global gecko_version 1.9.2
-%global _with_webkit 1
-%endif
 %global _with_mozjs 1
 %global _with_gnome 1
 %global _with_kde 1
 %global _with_networkmanager 1
-%endif
 %global _with_python 1
-
-#global svn svn20110412
+%endif
 
 Name:           libproxy
 Version:        0.4.7
-Release:        3%{?svn}%{?dist}
+Release:        4%{?svn}%{?dist}
 Summary:        A library handling all the details of proxy configuration
 
 Group:          System Environment/Libraries
 License:        LGPLv2+
 URL:            http://code.google.com/p/libproxy/
+
 Source0:        http://libproxy.googlecode.com/files/libproxy-%{version}%{?svn}.tar.gz
-Patch0:         libproxy-0.4.7-xul2.0.patch
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+Patch0:         libproxy-0.4.7-js185.patch
+Patch1:         libproxy-0.4.7-url-pac.patch
 
-%{?_with_python:BuildRequires:  python-devel}
-%if 0%{?fedora} > 14
+BuildRequires:  python-devel
 BuildRequires:  libmodman-devel >= 2.0.1
-%endif
 BuildRequires:  cmake >= 2.6.0
 
 # gnome
@@ -43,14 +33,10 @@ BuildRequires:  GConf2-devel
 BuildRequires:  libXmu-devel
 }
 # mozjs
-%{?_with_mozjs:BuildRequires: gecko-devel >= %{gecko_version}}
+%{?_with_mozjs:BuildRequires: js-devel}
 # NetworkManager
 %{?_with_networkmanager:
 BuildRequires:  NetworkManager-devel
-%if 0%{?fedora} < 15
-#NM nm-version.h , uneeded with later Fedora
-BuildRequires:  NetworkManager-glib-devel
-%endif
 BuildRequires:  dbus-devel
 }
 # webkit (gtk)
@@ -187,8 +173,8 @@ developing applications that use %{name}.
 
 %prep
 %setup -q
-%patch0 -p1 -b .xul2
-
+%patch0 -p1 -b .js185
+%patch1 -p1 -b .url-pac
 
 %build
 %{cmake} \
@@ -202,7 +188,6 @@ make VERBOSE=1 %{?_smp_mflags}
 
 
 %install
-rm -rf $RPM_BUILD_ROOT
 make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
 
 #In case all modules are disabled
@@ -212,9 +197,6 @@ mkdir -p $RPM_BUILD_ROOT%{_libdir}/%{name}/%{version}/modules
 %check
 make test
 
-%clean
-rm -rf $RPM_BUILD_ROOT
-
 %post -p /sbin/ldconfig
 
 %postun -p /sbin/ldconfig
@@ -288,6 +270,10 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Mon Feb 27 2012 Peter Robinson <pbrobinson@fedoraproject.org> - 0.4.7-4
+- Add upstream patches to use js rather than xulrunner
+- Cleanup spec for latest updates and remove obsolete bits
+
 * Fri Jan 13 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.4.7-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild