1 files changed, 21 insertions, 0 deletions
diff --git a/testing/mozbase/rust/mozrunner/src/bin/firefox-default-path.rs b/testing/mozbase/rust/mozrunner/src/bin/firefox-default-path.rs
new file mode 100644
index 0000000000..94958aac90
--- /dev/null
+++ b/testing/mozbase/rust/mozrunner/src/bin/firefox-default-path.rs
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+extern crate mozrunner;
+
+use mozrunner::runner::platform;
+use std::io::Write;
+
+fn main() {
+    let (path, code) = platform::firefox_default_path()
+        .map(|x| (x.to_string_lossy().into_owned(), 0))
+        .unwrap_or(("Firefox binary not found".to_owned(), 1));
+
+    let mut writer: Box<dyn Write> = match code {
+        0 => Box::new(std::io::stdout()),
+        _ => Box::new(std::io::stderr()),
+    };
+    writeln!(&mut writer, "{}", &*path).unwrap();
+    std::process::exit(code);
+}