1 files changed, 32 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/experiment-apis/appConstants.js b/browser/extensions/webcompat/experiment-apis/appConstants.js
new file mode 100644
index 0000000000..7019eb6215
--- /dev/null
+++ b/browser/extensions/webcompat/experiment-apis/appConstants.js
@@ -0,0 +1,32 @@
+/* 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/. */
+
+"use strict";
+
+/* global ExtensionAPI, XPCOMUtils */
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+  AppConstants: "resource://gre/modules/AppConstants.jsm",
+});
+
+this.appConstants = class extends ExtensionAPI {
+  getAPI(context) {
+    return {
+      appConstants: {
+        getReleaseBranch: () => {
+          if (AppConstants.NIGHTLY_BUILD) {
+            return "nightly";
+          } else if (AppConstants.MOZ_DEV_EDITION) {
+            return "dev_edition";
+          } else if (AppConstants.EARLY_BETA_OR_EARLIER) {
+            return "early_beta_or_earlier";
+          } else if (AppConstants.BETA_OR_RELEASE) {
+            return "beta_or_release";
+          }
+          return "unknown";
+        },
+      },
+    };
+  }
+};