diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -6823,11 +6823,11 @@
 # Whether cubeb is sandboxed
 - name: media.cubeb.sandbox
   type: bool
   mirror: always
 #if defined(XP_LINUX) && !defined(MOZ_WIDGET_ANDROID)
-  value: true
+  value: false 
 #elif defined(XP_WIN) && !defined(_ARM64_)
   value: true
 #else
   value: false
 #endif