diff --git a/firefox/docker-compose.yml b/firefox/docker-compose.yml
index d55c0245..2d333628 100644
--- a/firefox/docker-compose.yml
+++ b/firefox/docker-compose.yml
@@ -7,7 +7,7 @@ services:
       APP_PORT: 3000
 
   server:
-    image: linuxserver/firefox:139.0.1@sha256:a725a4351c96d9e187faf0adb692ed6a5c7c5cbaaa36d1c022dce04456220e2e
+    image: linuxserver/firefox:139.0.4@sha256:01c090309f63bc619a1df80bf14fdc87cb6fd922d956da48a968a60ab5a0df6d
     restart: on-failure
     environment:
       - PUID=1000
diff --git a/firefox/umbrel-app.yml b/firefox/umbrel-app.yml
index e8ca588d..f7b48548 100644
--- a/firefox/umbrel-app.yml
+++ b/firefox/umbrel-app.yml
@@ -2,7 +2,7 @@ manifestVersion: 1
 id: firefox
 category: networking
 name: Firefox
-version: "139.0.1"
+version: "139.0.4"
 tagline: Firefox is a free and open-source web browser
 description: >-
   Get the browser that protects what is important.
@@ -19,13 +19,14 @@ description: >-
 
   Available in over 90 languages, and compatible with Windows, Mac and Linux machines, Firefox works no matter what you are using or where you are. Make sure your operating system is up to date for the best experience.
 releaseNotes: >-
-  This release of Firefox brings multiple improvements and new features:
+  This release of Firefox brings multiple bug fixes and improvements:
 
 
-    - Full-Page Translations are now available within Firefox extension pages
-    - New Tab custom wallpaper and colors option is now available
-    - Link Previews feature added as an experimental option in Firefox Labs
-    - Address autofill has been enabled for users in Australia and India
+    - Fixed Firefox freezing when switching between apps or opening certain panels within the browser
+    - Fixed difficult selection of drop-down menu options in the Firefox preferences page when selected via the in-page search
+    - Fixed various selection issues when triple-clicking text in some situations
+    - Fixed an incorrect filename being used when setting an image as the desktop wallpaper on Windows
+    - Various security fixes
 
 
   Full release notes are available at https://www.mozilla.org/en-US/firefox/notes/