diff --git a/appdefs.xml b/appdefs.xml
index 3def7bf..43542aa 100644
--- a/appdefs.xml
+++ b/appdefs.xml
@@ -143,6 +143,11 @@ If {{ defs.app.friendly_name }} is crashing frequently, make sure that:
     </documentation>
     <!-- Changelog of the application. -->
     <history>
+      <release>
+        <version>1.17.0</version>
+        <date>2021-02-06</date>
+        <change>Updated Firefox to version 84.0.2-r0.</change>
+      </release>
       <release>
         <version>1.16.0</version>
         <date>2020-12-16</date>