diff --git a/python/mozbuild/mozbuild/backend/templates/android_eclipse/.externalToolBuilders/PostBuilder.launch b/python/mozbuild/mozbuild/backend/templates/android_eclipse/.externalToolBuilders/PostBuilder.launch
new file mode 100644
index 00000000000..ec664f57854
--- /dev/null
+++ b/python/mozbuild/mozbuild/backend/templates/android_eclipse/.externalToolBuilders/PostBuilder.launch
@@ -0,0 +1,18 @@
+#filter substitution
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<launchConfiguration type="org.eclipse.ant.AntBuilderLaunchConfigurationType">
+<stringAttribute key="org.eclipse.ant.ui.ATTR_ANT_CLEAN_TARGETS" value="post_build,"/>
+<booleanAttribute key="org.eclipse.ant.ui.ATTR_TARGETS_UPDATED" value="true"/>
+<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
+<booleanAttribute key="org.eclipse.debug.core.capture_output" value="true"/>
+<booleanAttribute key="org.eclipse.debug.ui.ATTR_CONSOLE_OUTPUT_ON" value="true"/>
+<stringAttribute key="org.eclipse.debug.core.ATTR_REFRESH_SCOPE" value="${project}"/>
+<booleanAttribute key="org.eclipse.debug.ui.ATTR_LAUNCH_IN_BACKGROUND" value="false"/>
+<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
+<booleanAttribute key="org.eclipse.jdt.launching.DEFAULT_CLASSPATH" value="true"/>
+<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="@IDE_PROJECT_NAME@"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/@IDE_PROJECT_NAME@/post_build.xml}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_RUN_BUILD_KINDS" value="clean"/>
+<booleanAttribute key="org.eclipse.ui.externaltools.ATTR_TRIGGERS_CONFIGURED" value="true"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="-Dbuild_type=&quot;${build_type}&quot;&#10;-Dbuild_files=&quot;DUMMY ${build_files}&quot;"/>
+</launchConfiguration>
diff --git a/python/mozbuild/mozbuild/backend/templates/android_eclipse/.project b/python/mozbuild/mozbuild/backend/templates/android_eclipse/.project
index 5a0890b587d..dfba74415bf 100644
--- a/python/mozbuild/mozbuild/backend/templates/android_eclipse/.project
+++ b/python/mozbuild/mozbuild/backend/templates/android_eclipse/.project
@@ -35,6 +35,15 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
+			<arguments>
+				<dictionary>
+					<key>LaunchConfigHandle</key>
+					<value>&lt;project&gt;/.externalToolBuilders/PostBuilder.launch</value>
+				</dictionary>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
diff --git a/python/mozbuild/mozbuild/backend/templates/android_eclipse/post_build.xml b/python/mozbuild/mozbuild/backend/templates/android_eclipse/post_build.xml
new file mode 100644
index 00000000000..4a8f91eb0c2
--- /dev/null
+++ b/python/mozbuild/mozbuild/backend/templates/android_eclipse/post_build.xml
@@ -0,0 +1,45 @@
+#filter substitution
+<?xml version="1.0" encoding="UTF-8"?>
+<project>
+    <property name="topsrcdir" value="@IDE_TOPSRCDIR@"/>
+    <property name="topobjdir" value="@IDE_TOPOBJDIR@"/>
+    <property name="objdir" value="@IDE_OBJDIR@"/>
+    <property name="project_name" value="@IDE_PROJECT_NAME@"/>
+
+    <!-- This file can get large (!), but for a short time we want to
+         log as much information for debugging build loops as possible. -->
+    <record name="${topobjdir}/android_eclipse/build.log" append="yes" />
+
+    <target name="build_needed" >
+
+        <script language="javascript" >
+<![CDATA[
+  importClass(java.io.File);
+
+  var build_files = project.getProperty("build_files").split(" ");
+  var after = [];
+
+  var echo = project.createTask("echo");
+  var info = Packages.org.apache.tools.ant.taskdefs.Echo.EchoLevel();
+  info.setValue("info");
+  echo.setLevel(info);
+
+  // Timestamp.
+  echo.addText(project.getProperty("project_name") + " build type " + project.getProperty("build_type") + " started at: " + new Date());
+  echo.addText(project.getProperty("line.separator"));
+
+  echo.perform();
+
+  // The if below checks for the property being defined, not its value.
+  project.setProperty("build_needed", build_needed);
+]]>
+        </script>
+    </target>
+
+    <target name="post_build" depends="build_needed" if="build_needed">
+        <exec executable="${topsrcdir}/mach" dir="${topobjdir}" failonerror="true">
+            <arg value="build"/>
+            <arg value="${objdir}/ANDROID_ECLIPSE_PROJECT_${project_name}"/>
+        </exec>
+    </target>
+</project>