diff --git a/verify_test.go b/verify_test.go
new file mode 100644
index 0000000..fdbb5de
--- /dev/null
+++ b/verify_test.go
@@ -0,0 +1,40 @@
+package mar
+
+import (
+	"crypto/x509"
+	"encoding/pem"
+	"log"
+	"testing"
+)
+
+func TestFirefoxKeys(t *testing.T) {
+	testMar := New()
+	testMar.AddContent([]byte("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"), "/foo/bar", 0600)
+
+	// add the test rsa key to the list of firefox keys
+	publicKeyDer, err := x509.MarshalPKIXPublicKey(&rsa2048Key.PublicKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	publicKeyBlock := pem.Block{
+		Type:    "PUBLIC KEY",
+		Headers: nil,
+		Bytes:   publicKeyDer,
+	}
+	publicKeyPem := string(pem.EncodeToMemory(&publicKeyBlock))
+	FirefoxReleasePublicKeys["unit_test"] = publicKeyPem
+
+	testMar.PrepareSignature(rsa2048Key, rsa2048Key.Public())
+	testMar.FinalizeSignatures()
+
+	validKeys, isSigned, err := testMar.VerifyWithFirefoxKeys()
+	if err != nil {
+		log.Fatal(err)
+	}
+	if !isSigned {
+		t.Fatal("expected signed MAR file but didn't get one")
+	}
+	if len(validKeys) != 1 || validKeys[0] != "unit_test" {
+		t.Fatal("expected signature from 'unit_test' key but didn't get one")
+	}
+}