diff --git a/mobile/android/fenix/app/nimbus.fml.yaml b/mobile/android/fenix/app/nimbus.fml.yaml
index fa054676de31b..dfb1098ae9bc8 100644
--- a/mobile/android/fenix/app/nimbus.fml.yaml
+++ b/mobile/android/fenix/app/nimbus.fml.yaml
@@ -449,7 +449,14 @@ features:
           process. "2" means "isolate high value", Android-specific setting to only isolate sites
           considered "high value".
         type: Int
-        default: 2
+        default: 0
+    defaults:
+      - channel: nightly
+        value:
+          isolationStrategy: 2
+      - channel: developer
+        value:
+          isolationStrategy: 2
 
   suggest-shipped-domains:
     description: Feature that suggests domains from the shipped domain list.