diff --git a/indra/newview/fonts/MobiSans-Bold.ttf b/indra/newview/fonts/MobiSans-Bold.ttf
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diff --git a/indra/newview/fonts/MobiSans-BoldItalic.ttf b/indra/newview/fonts/MobiSans-BoldItalic.ttf
new file mode 100644
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diff --git a/indra/newview/fonts/MobiSans-Italic.ttf b/indra/newview/fonts/MobiSans-Italic.ttf
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diff --git a/indra/newview/fonts/MobiSans.ttf b/indra/newview/fonts/MobiSans.ttf
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diff --git a/indra/newview/fonts/MobiSansMono.ttf b/indra/newview/fonts/MobiSansMono.ttf
new file mode 100644
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diff --git a/indra/newview/skins/default/xui/en/fonts_mobi.xml b/indra/newview/skins/default/xui/en/fonts_mobi.xml
new file mode 100644
index 0000000000..2cd86fd254
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/fonts_mobi.xml
@@ -0,0 +1,165 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<fonts>
+
+  <font name="default" comment="default font files (global fallbacks)">
+    <file>MobiSans.ttf</file>
+    <os name="Windows">
+      <file>MSGOTHIC.TTC</file>
+      <file>gulim.ttc</file>
+      <file>simhei.ttf</file>
+      <file>ArialUni.ttf</file>
+    </os>
+    <os name="Mac">
+      <file>ヒラギノ角ゴ Pro W3.otf</file>
+      <file>ヒラギノ角ゴ ProN W3.otf</file>
+      <file>AppleGothic.dfont</file>
+      <file>AppleGothic.ttf</file>
+      <file>华文细黑.ttf</file>
+    </os>
+  </font>
+
+  <font name="SansSerifBold"
+	comment="Name of bold sans-serif font">
+    <file>MobiSans-Bold.ttf</file>
+    <os name="Windows">
+      <file>arialbd.ttf</file>
+      </os>
+    <os name="Mac">
+      <file>Helvetica.dfont</file>
+      </os>
+  </font>
+
+  <font name="SansSerif" comment="Name of san-serif font (Truetype file name)">
+    <file>MobiSans.ttf</file>
+    <os name="Windows">
+      <file>arial.ttf</file>
+      </os>
+    <os name="Mac">
+      <file>Helvetica.dfont</file>
+      </os>
+  </font>
+
+  <font name="SansSerif"
+	comment="Name of bold sans-serif font"
+	font_style="BOLD">
+    <file>MobiSans-Bold.ttf</file>
+  </font>
+
+  <font name="SansSerif"
+	comment="Name of italic sans-serif font"
+	font_style="ITALIC">
+    <file>MobiSans-Italic.ttf</file>
+  </font>
+
+  <font name="SansSerif"
+	comment="Name of bold italic sans-serif font"
+	font_style="BOLD|ITALIC">
+    <file>MobiSans-BoldItalic.ttf</file>
+  </font>
+
+  <font name="Monospace"
+	comment="Name of monospace font">
+    <file>MobiSansMono.ttf</file>
+  </font>
+
+  <font name="DejaVu"
+	comment="Name of DejaVu font">
+    <file>MobiSans.ttf</file>
+  </font>
+
+  <font name="DejaVu"
+	comment="Name of DejaVu font (bold)"
+	font_style="BOLD">
+    <file>MobiSans-Bold.ttf</file>
+  </font>
+
+  <font name="DejaVu"
+	comment="Name of DejaVu font (italic)"
+	font_style="ITALIC">
+    <file>MobiSans-Italic.ttf</file>
+  </font>
+
+  <font name="DejaVu"
+	comment="Name of DejaVu font (bold italic)"
+	font_style="BOLD|ITALIC">
+    <file>MobiSans-BoldItalic.ttf</file>
+  </font>
+
+  <font name="Helvetica"
+	comment="Name of Helvetica font">
+    <file>MobiSans.ttf</file>
+    <os name="Windows">
+      <file>arial.ttf</file>
+      </os>
+    <os name="Mac">
+      <file>arial.ttf</file>
+      </os>
+  </font>
+
+  <font name="Helvetica"
+	comment="Name of Helvetica font (bold)"
+	font_style="BOLD">
+    <file>MobiSans-Bold.ttf</file>
+    <os name="Windows">
+      <file>arialbd.ttf</file>
+      </os>
+    <os name="Mac">
+      <file>arialbd.ttf</file>
+      </os>
+  </font>
+
+  <font name="Helvetica"
+	comment="Name of Helvetica font (italic)"
+	font_style="ITALIC">
+    <file>MobiSans-Italic.ttf</file>
+    <os name="Windows">
+      <file>ariali.ttf</file>
+      </os>
+    <os name="Mac">
+      <file>ariali.ttf</file>
+      </os>
+  </font>
+
+  <font name="Helvetica"
+	comment="Name of Helvetica font (bold italic)"
+	font_style="BOLD|ITALIC">
+    <file>MobiSans-BoldItalic.ttf</file>
+    <os name="Windows">
+      <file>arialbi.ttf</file>
+      </os>
+    <os name="Mac">
+      <file>arialbi.ttf</file>
+      </os>
+  </font>
+
+  <font name="OverrideTest"
+	comment="Name of font to test overriding">
+    <file>times.ttf</file>
+    <file>MobiSans.ttf</file>
+  </font>
+
+  <font_size name="Monospace"
+	     comment="Size for monospaced font (points, or 1/72 of an inch)"
+	     size="8.0"
+	     />
+  <font_size name="Huge"
+	     comment="Size of huge font (points, or 1/72 of an inch)"
+	     size="16.0"
+	     />
+  <font_size name="Large"
+	     comment="Size of large font (points, or 1/72 of an inch)"
+	     size="11.0"
+	     />
+  <font_size name="Medium"
+	     comment="Size of medium font (points, or 1/72 of an inch)"
+	     size="10.0"
+	     />
+  <font_size name="Small"
+	     comment="Size of small font (points, or 1/72 of an inch)"
+	     size="9.0"
+	     />
+  <font_size name="Pie"
+	     comment="Size of pie menu font (points, or 1/72 of an inch)"
+	     size="7.5"
+	     />
+</fonts>
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_UI.xml b/indra/newview/skins/default/xui/en/panel_preferences_UI.xml
index 6b00d03ba1..e8f893a231 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_UI.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_UI.xml
@@ -631,6 +631,10 @@
 		 label="Droid Sans"
 		 name="tt_item4"
 		 value="fonts_droid.xml" />
+		<combo_box.item
+		 label="Mobi Sans"
+		 name="tt_item5"
+		 value="fonts_mobi.xml" />
     </combo_box>
 	<text
      name="tooltip_textbox"