diff --git a/src/cmd/trace/doc.go b/src/cmd/trace/doc.go
index 79506ca9bb9..ed1f930a7bb 100644
--- a/src/cmd/trace/doc.go
+++ b/src/cmd/trace/doc.go
@@ -26,5 +26,10 @@ Supported profile types are:
 
 Then, you can use the pprof tool to analyze the profile:
 	go tool pprof TYPE.pprof
+
+Note that while the various profiles available when launching
+'go tool trace' work on every browser, the trace viewer itself
+(the 'view trace' page) comes from the Chrome/Chromium project
+and is only actively tested on that browser.
 */
 package main
diff --git a/src/cmd/trace/main.go b/src/cmd/trace/main.go
index 6367874d705..8ea0ba01615 100644
--- a/src/cmd/trace/main.go
+++ b/src/cmd/trace/main.go
@@ -42,6 +42,11 @@ Supported profile types are:
 Flags:
 	-http=addr: HTTP service address (e.g., ':6060')
 	-pprof=type: print a pprof-like profile instead
+
+Note that while the various profiles available when launching
+'go tool trace' work on every browser, the trace viewer itself
+(the 'view trace' page) comes from the Chrome/Chromium project
+and is only actively tested on that browser.
 `
 
 var (