diff --git a/build.sh b/build.sh
index 4d03e8f..16dffa8 100755
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 set -e 
 
+. i2pversion
+
 JAVA=$(java --version | tr -d 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n' | cut -d ' ' -f 2 | cut -d '.' -f 1 | tr -d '\n\t ')
 
 if [ "$JAVA" -lt "14" ]; then
@@ -18,6 +20,11 @@ echo "cleaning"
 ./clean.sh
 
 HERE="$PWD"
+cd "$HERE/../i2p.i2p/"
+git checkout "$VERSION"
+ant pkg
+
+cd "$HERE"
 RES_DIR="$HERE/../i2p.i2p/installer/resources"
 I2P_JARS="$HERE/../i2p.i2p/pkg-temp/lib"
 I2P_PKG="$HERE/../i2p.i2p/pkg-temp"
diff --git a/i2pversion b/i2pversion
new file mode 100644
index 0000000..cf2eddd
--- /dev/null
+++ b/i2pversion
@@ -0,0 +1,4 @@
+#! /usr/bin/env sh
+
+VERSION=0.9.50
+export VERSION="$VERSION"
\ No newline at end of file
diff --git a/src/app-profile/prefs.js b/src/app-profile/prefs.js
index 193712b..11e8061 100644
--- a/src/app-profile/prefs.js
+++ b/src/app-profile/prefs.js
@@ -53,3 +53,10 @@ user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false);
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
 user_pref("browser.newtabpage.activity-stream.default.sites", "http://127.0.0.1:7657/home,http://127.0.0.1:7657/i2psnark/,http://127.0.0.1:7657/susimail/");
 user_pref("browser.newtabpage.activity-stream.feeds.topsites", true);
+user_pref("ui.use_standins_for_native_colors", true);
+user_pref("webgl.disable-extensions", true);
+user_pref("webgl.min_capability_mode", true);
+user_pref("webgl.disable-fail-if-major-performance-caveat", true);
+user_pref("webgl.enable-webgl2", false);
+user_pref("media.navigator.enabled", false);
+user_pref("dom.w3c_touch_events.enabled", false);
diff --git a/src/app-profile/user.js b/src/app-profile/user.js
index 985a1de..c4bb768 100644
--- a/src/app-profile/user.js
+++ b/src/app-profile/user.js
@@ -216,3 +216,9 @@ user_pref("keyword.enabled", false);
 user_pref("extensions.allowPrivateBrowsingByDefault", true);
 user_pref("extensions.PrivateBrowsing.notification", false);
 user_pref("browser.newtabpage.activity-stream.feeds.topsites", true);
+user_pref("ui.use_standins_for_native_colors", true);
+user_pref("webgl.disable-extensions", true);
+user_pref("webgl.min_capability_mode", true);
+user_pref("webgl.disable-fail-if-major-performance-caveat", true);
+user_pref("webgl.enable-webgl2", false);
+user_pref("dom.w3c_touch_events.enabled", false);
diff --git a/src/nsis/i2pbrowser-jpackage.nsi b/src/nsis/i2pbrowser-jpackage.nsi
new file mode 100644
index 0000000..e69de29
diff --git a/src/nsis/i2pbrowser-version.nsi b/src/nsis/i2pbrowser-version.nsi
index a9c2301..74dcffe 100644
--- a/src/nsis/i2pbrowser-version.nsi
+++ b/src/nsis/i2pbrowser-version.nsi
@@ -1,3 +1,3 @@
 !define VERSIONMAJOR 0
-!define VERSIONMINOR 03
+!define VERSIONMINOR 04
 !define VERSIONBUILD 
diff --git a/src/profile/prefs.js b/src/profile/prefs.js
index 73feac8..0266b56 100644
--- a/src/profile/prefs.js
+++ b/src/profile/prefs.js
@@ -51,3 +51,10 @@ user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false);
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
 user_pref("browser.newtabpage.activity-stream.default.sites", "http://planet.i2p/,http://legwork.i2p/,http://i2pwiki.i2p/,http://i2pforums.i2p/,http://zzz.i2p/");
 user_pref("browser.newtabpage.activity-stream.feeds.topsites", true);
+user_pref("ui.use_standins_for_native_colors", true);
+user_pref("webgl.disable-extensions", true);
+user_pref("webgl.min_capability_mode", true);
+user_pref("webgl.disable-fail-if-major-performance-caveat", true);
+user_pref("webgl.enable-webgl2", false);
+user_pref("media.navigator.enabled", false);
+user_pref("dom.w3c_touch_events.enabled", false);
diff --git a/src/profile/user.js b/src/profile/user.js
index 99385e9..add6939 100644
--- a/src/profile/user.js
+++ b/src/profile/user.js
@@ -216,3 +216,9 @@ user_pref("keyword.enabled", false);
 user_pref("extensions.allowPrivateBrowsingByDefault", true);
 user_pref("extensions.PrivateBrowsing.notification", false);
 user_pref("browser.newtabpage.activity-stream.feeds.topsites", true);
+user_pref("ui.use_standins_for_native_colors", true);
+user_pref("webgl.disable-extensions", true);
+user_pref("webgl.min_capability_mode", true);
+user_pref("webgl.disable-fail-if-major-performance-caveat", true);
+user_pref("webgl.enable-webgl2", false);
+user_pref("dom.w3c_touch_events.enabled", false);