diff --git a/packages/firefox.xml b/packages/firefox.xml
index 3dc4fe9..64e04bf 100644
--- a/packages/firefox.xml
+++ b/packages/firefox.xml
@@ -2,11 +2,11 @@
 <packages>
     <package id="firefox"
              name="Mozilla Firefox"
-             revision="80"
+             revision="81"
              reboot="false"
              priority="10">
 
-        <variable name="PKG_VERSION" value="52.8.1" />
+        <variable name="PKG_VERSION" value="52.9.0" />
         <variable name="VARIANTE" value="esr" />
 
         <check type="uninstall" condition="versiongreaterorequal" path="Mozilla Firefox .+" value="%PKG_VERSION%" />
diff --git a/softwares/x64/Firefox Setup 52.8.1esr.exe b/softwares/x64/Firefox Setup 52.9.0esr.exe
similarity index 79%
rename from softwares/x64/Firefox Setup 52.8.1esr.exe
rename to softwares/x64/Firefox Setup 52.9.0esr.exe
index b93e24e..cb9d51a 100644
Binary files a/softwares/x64/Firefox Setup 52.8.1esr.exe and b/softwares/x64/Firefox Setup 52.9.0esr.exe differ
diff --git a/softwares/x86/Firefox Setup 52.8.1esr.exe b/softwares/x86/Firefox Setup 52.9.0esr.exe
similarity index 78%
rename from softwares/x86/Firefox Setup 52.8.1esr.exe
rename to softwares/x86/Firefox Setup 52.9.0esr.exe
index 060346b..619df74 100644
Binary files a/softwares/x86/Firefox Setup 52.8.1esr.exe and b/softwares/x86/Firefox Setup 52.9.0esr.exe differ