tor-browser

commit a0670b7b8a56e4e605a1a56500aefe2fb5f1cd7c
parent 9b1ebbeb5c6693ef4e7f0c02148ab80b67dd6f33
Author: Andrew McCreight <continuation@gmail.com>
Date:   Sat,  3 Jan 2026 21:41:14 +0000

Bug 2007393 - Don't use the new serializer for devtools. r=dom-core,smaug

Differential Revision: https://phabricator.services.mozilla.com/D277778

Diffstat:
M
dom/ipc/jsactor/JSIPCValueUtils.cpp
 | 
8
++++++++

1 file changed, 8 insertions(+), 0 deletions(-)
diff --git a/dom/ipc/jsactor/JSIPCValueUtils.cpp b/dom/ipc/jsactor/JSIPCValueUtils.cpp
@@ -57,6 +57,14 @@ bool JSActorSupportsTypedSend(const nsACString& aName) {
     return false;
   }
 
+  // Using the new serializer for the devtools DAMP tests causes performance
+  // regressions. Devtools uses complex messages that are difficult to type, so
+  // we're probably not losing much by giving up entirely on typing it.
+  // See bug 2007393.
+  if (aName == "DevToolsProcess" || aName == "BrowserToolboxDevToolsProcess") {
+    return false;
+  }
+
   // Send messages from these actors untyped. Their messages are complex, so
   // using IPDL serialization might cause problems, and the actors have a lot
   // of privilege, so type checking won't add much safety.