diff --git a/src/components/browser-modal/browser-modal.jsx b/src/components/browser-modal/browser-modal.jsx
index 772ba6575..bb5c82fcf 100644
--- a/src/components/browser-modal/browser-modal.jsx
+++ b/src/components/browser-modal/browser-modal.jsx
@@ -31,7 +31,7 @@ const BrowserModal = ({intl, ...props}) => (
             <p>
                 { /* eslint-disable max-len */ }
                 <FormattedMessage
-                    defaultMessage="We're very sorry, but Scratch 3.0 does not support Internet Explorer, Opera or Silk. We recommend trying a newer browser such as Google Chrome, Mozilla Firefox, or Microsoft Edge."
+                    defaultMessage="We're very sorry, but Scratch 3.0 does not support Internet Explorer, Vivaldi, Opera or Silk. We recommend trying a newer browser such as Google Chrome, Mozilla Firefox, or Microsoft Edge."
                     description="Unsupported browser description"
                     id="gui.unsupportedBrowser.description"
                 />
diff --git a/src/lib/supported-browser.js b/src/lib/supported-browser.js
index 181fb1cb6..caeac5fe3 100644
--- a/src/lib/supported-browser.js
+++ b/src/lib/supported-browser.js
@@ -6,6 +6,7 @@ import bowser from 'bowser';
  */
 export default function () {
     if (bowser.msie ||
+        bowser.vivaldi ||
         bowser.opera ||
         bowser.silk) {
         return false;