diff --git a/frontend/src/ts/controllers/account-controller.ts b/frontend/src/ts/controllers/account-controller.ts
index eb425dae38b6..6ead95eb417d 100644
--- a/frontend/src/ts/controllers/account-controller.ts
+++ b/frontend/src/ts/controllers/account-controller.ts
@@ -593,7 +593,17 @@ async function signUp(): Promise<void> {
     }
     Notifications.add("Account created", 1);
   } catch (e) {
-    const message = Misc.createErrorMessage(e, "Failed to create account");
+    let message = Misc.createErrorMessage(e, "Failed to create account");
+
+    if (e instanceof Error) {
+      if ("code" in e && e.code === "auth/email-already-in-use") {
+        message = Misc.createErrorMessage(
+          { message: "Email already in use" },
+          "Failed to create account"
+        );
+      }
+    }
+
     Notifications.add(message, -1);
     LoginPage.hidePreloader();
     LoginPage.enableInputs();