Add a comment on the confirmation transaction metamask popup showing blank, but button still renders

test/e2e/firefox/metamask.spec.js

@@ -234,6 +234,7 @@ describe('', function () {
       await delay(1000)
     })
 
+    // There is an issue with blank confirmation window, but the button is still there and the driver is able to clicked (?.?)
     it('confirms transaction in MetaMask popup', async function () {
       const windowHandles = await driver.getAllWindowHandles()
       await driver.switchTo().window(windowHandles[2])