From 9e611f5a6eadd5a980d529039711af44562b855c Mon Sep 17 00:00:00 2001
From: Maneesh Tewani <mtewani@google.com>
Date: Fri, 10 Apr 2026 10:13:30 -0700
Subject: [PATCH 1/4] Add NEXT_PUBLIC prefix to FIREBASE

---
 packages/util/src/defaults.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/util/src/defaults.ts b/packages/util/src/defaults.ts
index d7882e152d..61f000a943 100644
--- a/packages/util/src/defaults.ts
+++ b/packages/util/src/defaults.ts
@@ -69,7 +69,9 @@ const getDefaultsFromEnvVariable = (): FirebaseDefaults | undefined => {
   if (typeof process === 'undefined' || typeof process.env === 'undefined') {
     return;
   }
-  const defaultsJsonString = process.env.__FIREBASE_DEFAULTS__;
+  const defaultsJsonString =
+    process.env.__FIREBASE_DEFAULTS__ ||
+    process.env.NEXT_PUBLIC__FIREBASE_DEFAULTS__;
   if (defaultsJsonString) {
     return JSON.parse(defaultsJsonString);
   }
@@ -114,6 +116,7 @@ export const getDefaults = (): FirebaseDefaults | undefined => {
      * and add paths for them if needed.
      */
     console.info(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`);
+    console.error(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`);
     return;
   }
 };

From bd74682b124b5c022e26da6171a9de3afdf75d60 Mon Sep 17 00:00:00 2001
From: Maneesh Tewani <mtewani@google.com>
Date: Fri, 10 Apr 2026 10:14:59 -0700
Subject: [PATCH 2/4] Removed extra line

---
 packages/util/src/defaults.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/packages/util/src/defaults.ts b/packages/util/src/defaults.ts
index 61f000a943..80365d136e 100644
--- a/packages/util/src/defaults.ts
+++ b/packages/util/src/defaults.ts
@@ -116,7 +116,6 @@ export const getDefaults = (): FirebaseDefaults | undefined => {
      * and add paths for them if needed.
      */
     console.info(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`);
-    console.error(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`);
     return;
   }
 };

From e8b33240f7922930788d223774d0ec7b3fac9fa6 Mon Sep 17 00:00:00 2001
From: Maneesh Tewani <maneesht@users.noreply.github.com>
Date: Fri, 10 Apr 2026 10:18:11 -0700
Subject: [PATCH 3/4] Create real-nails-warn.md

---
 .changeset/real-nails-warn.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/real-nails-warn.md

diff --git a/.changeset/real-nails-warn.md b/.changeset/real-nails-warn.md
new file mode 100644
index 0000000000..50312e684f
--- /dev/null
+++ b/.changeset/real-nails-warn.md
@@ -0,0 +1,5 @@
+---
+"@firebase/util": patch
+---
+
+Allow developers to call `initializeApp` if they have the `NEXT_PUBLIC__FIREBASE__DEFAULTS__` env flag enabled.

From c17ec0b877a76909355b610e179ae2ba8759f4cb Mon Sep 17 00:00:00 2001
From: Maneesh Tewani <maneesht@users.noreply.github.com>
Date: Fri, 10 Apr 2026 10:18:40 -0700
Subject: [PATCH 4/4] Update real-nails-warn.md

---
 .changeset/real-nails-warn.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.changeset/real-nails-warn.md b/.changeset/real-nails-warn.md
index 50312e684f..245889cf61 100644
--- a/.changeset/real-nails-warn.md
+++ b/.changeset/real-nails-warn.md
@@ -2,4 +2,4 @@
 "@firebase/util": patch
 ---
 
-Allow developers to call `initializeApp` if they have the `NEXT_PUBLIC__FIREBASE__DEFAULTS__` env flag enabled.
+Allow developers to call `initializeApp` if they have the `NEXT_PUBLIC_FIREBASE__DEFAULTS__` env flag enabled.