diff --git a/toolkit/components/extensions/schemas/manifest.json b/toolkit/components/extensions/schemas/manifest.json
index 000e5fc67310f..0e4f8917791b1 100644
--- a/toolkit/components/extensions/schemas/manifest.json
+++ b/toolkit/components/extensions/schemas/manifest.json
@@ -28,7 +28,7 @@
 
           "name": {
             "type": "string",
-            "description": "Name must be at least 2, and should be at most 75 characters",
+            "description": "Name must be at least 2, and should be at most 45 characters",
             "optional": false,
             "preprocess": "localize"
           },