diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a2e2dd0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.xpi
+*.exe
diff --git a/install.rdf b/install.rdf
index b08d03e..bad43d8 100644
--- a/install.rdf
+++ b/install.rdf
@@ -59,7 +59,7 @@
 	  <Description>
 		<em:id>{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}</em:id>
 		<em:minVersion>27.0.0</em:minVersion>
-		<em:maxVersion>28.*</em:maxVersion>
+		<em:maxVersion>29.*</em:maxVersion>
 	  </Description>
 	</em:targetApplication>
   </Description>
diff --git a/release.cmd b/release.cmd
new file mode 100644
index 0000000..6e5cc97
--- /dev/null
+++ b/release.cmd
@@ -0,0 +1,9 @@
+@echo off
+set VER=1.2.2
+
+sed -i -E "s/version>.+?</version>%VER%</" install.rdf
+sed -i -E "s/version>.+?</version>%VER%</; s/download\/.+?\/pxruler-.+?\.xpi/download\/%VER%\/pxruler-%VER%\.xpi/" update.xml
+
+set XPI=pxruler-%VER%.xpi
+if exist %XPI% del %XPI%
+zip -r9q %XPI% * -x .git/* .gitignore update.xml LICENSE README.md *.cmd *.xpi *.exe
diff --git a/update.xml b/update.xml
new file mode 100644
index 0000000..2c2a835
--- /dev/null
+++ b/update.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <RDF:Description about="urn:mozilla:extension:pxruler@Off.JustOff">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.2.2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}</em:id>
+                <em:minVersion>27.0</em:minVersion>
+                <em:maxVersion>29.*</em:maxVersion>
+                <em:updateLink>https://github.com/JustOff/proxy-privacy-ruler/releases/download/1.2.2/pxruler-1.2.2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>38.0</em:minVersion>
+                <em:maxVersion>56.*</em:maxVersion>
+                <em:updateLink>https://github.com/JustOff/proxy-privacy-ruler/releases/download/1.2.2/pxruler-1.2.2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
+                <em:minVersion>2.40</em:minVersion>
+                <em:maxVersion>2.*</em:maxVersion>
+                <em:updateLink>https://github.com/JustOff/proxy-privacy-ruler/releases/download/1.2.2/pxruler-1.2.2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+</RDF:RDF>