1 files changed, 18 insertions, 0 deletions
diff --git a/browser/base/content/test/webextensions/browser_permissions_mozAddonManager.js b/browser/base/content/test/webextensions/browser_permissions_mozAddonManager.js
new file mode 100644
index 0000000000..1370ff18f7
--- /dev/null
+++ b/browser/base/content/test/webextensions/browser_permissions_mozAddonManager.js
@@ -0,0 +1,18 @@
+"use strict";
+
+const INSTALL_PAGE = `${BASE}/file_install_extensions.html`;
+
+async function installMozAM(filename) {
+  BrowserTestUtils.loadURIString(gBrowser.selectedBrowser, INSTALL_PAGE);
+  await BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+
+  await SpecialPowers.spawn(
+    gBrowser.selectedBrowser,
+    [`${BASE}/${filename}`],
+    async function (url) {
+      await content.wrappedJSObject.installMozAM(url);
+    }
+  );
+}
+
+add_task(() => testInstallMethod(installMozAM, "installAmo"));