--- extensions/common/api/runtime.json.orig	2021-04-14 18:41:04 UTC
+++ extensions/common/api/runtime.json
@@ -68,7 +68,7 @@
         "id": "PlatformOs",
         "type": "string",
         "description": "The operating system chrome is running on.",
-        "enum": ["mac", "win", "android", "cros", "linux", "openbsd"]
+        "enum": ["mac", "win", "android", "cros", "linux", "freebsd", "openbsd"]
       },
       {
         "id": "PlatformArch",