diff --git a/app/capabilities.js b/app/capabilities.js
index 6e3af90f..3367540d 100644
--- a/app/capabilities.js
+++ b/app/capabilities.js
@@ -1,5 +1,5 @@
-/* global AUTH_CONFIG LOCALE */
-import { browserName } from './utils';
+/* global AUTH_CONFIG */
+import { browserName, locale } from './utils';
 
 async function checkCrypto() {
   try {
@@ -91,7 +91,7 @@ export default async function getCapabilities() {
     account = false;
   }
   const share =
-    typeof navigator.share === 'function' && LOCALE.startsWith('en'); // en until strings merge
+    typeof navigator.share === 'function' && locale().startsWith('en'); // en until strings merge
 
   const standalone =
     window.matchMedia('(display-mode: standalone)').matches ||
diff --git a/app/controller.js b/app/controller.js
index 47ec3ecc..0fe285d7 100644
--- a/app/controller.js
+++ b/app/controller.js
@@ -2,11 +2,12 @@ import FileSender from './fileSender';
 import FileReceiver from './fileReceiver';
 import { copyToClipboard, delay, openLinksInNewTab, percent } from './utils';
 import * as metrics from './metrics';
-import { bytes } from './utils';
+import { bytes, locale } from './utils';
 import okDialog from './ui/okDialog';
 import copyDialog from './ui/copyDialog';
 import shareDialog from './ui/shareDialog';
 import signupDialog from './ui/signupDialog';
+import surveyDialog from './ui/surveyDialog';
 
 export default function(state, emitter) {
   let lastRender = 0;
@@ -281,6 +282,22 @@ export default function(state, emitter) {
     // metrics.copiedLink({ location });
   });
 
+  emitter.on('closeModal', () => {
+    if (
+      state.PREFS.surveyUrl &&
+      ['copy', 'share'].includes(state.modal.type) &&
+      locale().startsWith('en') &&
+      (state.storage.totalUploads > 1 || state.storage.totalDownloads > 0) &&
+      !state.user.surveyed
+    ) {
+      state.user.surveyed = true;
+      state.modal = surveyDialog();
+    } else {
+      state.modal = null;
+    }
+    render();
+  });
+
   setInterval(() => {
     // poll for updates of the upload list
     if (!state.modal && state.route === '/') {
diff --git a/app/main.js b/app/main.js
index 33a89c04..40b3af57 100644
--- a/app/main.js
+++ b/app/main.js
@@ -1,4 +1,4 @@
-/* global DEFAULTS LIMITS LOCALE */
+/* global DEFAULTS LIMITS PREFS */
 import 'core-js';
 import 'fast-text-encoding'; // MS Edge support
 import 'fluent-intl-polyfill';
@@ -17,7 +17,7 @@ import './main.css';
 import User from './user';
 import { getTranslator } from './locale';
 import Archive from './archive';
-import { setTranslate } from './utils';
+import { setTranslate, locale } from './utils';
 
 if (navigator.doNotTrack !== '1' && window.RAVEN_CONFIG) {
   Raven.config(window.SENTRY_ID, window.RAVEN_CONFIG).install();
@@ -45,11 +45,12 @@ if (process.env.NODE_ENV === 'production') {
     }
   }
 
-  const translate = await getTranslator(LOCALE);
+  const translate = await getTranslator(locale());
   setTranslate(translate);
   window.initialState = {
     LIMITS,
     DEFAULTS,
+    PREFS,
     archive: new Archive([], DEFAULTS.EXPIRE_SECONDS),
     capabilities,
     translate,
diff --git a/app/metrics.js b/app/metrics.js
index c256bf85..f348a4bd 100644
--- a/app/metrics.js
+++ b/app/metrics.js
@@ -1,5 +1,5 @@
 import storage from './storage';
-import { platform } from './utils';
+import { platform, locale } from './utils';
 import { sendMetrics } from './api';
 
 let appState = null;
@@ -7,7 +7,7 @@ let appState = null;
 const HOUR = 1000 * 60 * 60;
 const events = [];
 let session_id = Date.now();
-const lang = document.querySelector('html').lang;
+const lang = locale();
 
 export default function initialize(state, emitter) {
   appState = state;
diff --git a/app/ui/copyDialog.js b/app/ui/copyDialog.js
index 77bff125..58c3cff9 100644
--- a/app/ui/copyDialog.js
+++ b/app/ui/copyDialog.js
@@ -2,7 +2,7 @@ const html = require('choo/html');
 const { copyToClipboard } = require('../utils');
 
 module.exports = function(name, url) {
-  return function(state, emit, close) {
+  const dialog = function(state, emit, close) {
     return html`
       <send-copy-dialog
         class="flex flex-col items-center text-center p-4 max-w-sm m-auto"
@@ -45,4 +45,6 @@ module.exports = function(name, url) {
       setTimeout(close, 1000);
     }
   };
+  dialog.type = 'copy';
+  return dialog;
 };
diff --git a/app/ui/modal.js b/app/ui/modal.js
index d5beb6be..1962c510 100644
--- a/app/ui/modal.js
+++ b/app/ui/modal.js
@@ -21,7 +21,6 @@ module.exports = function(state, emit) {
       event.preventDefault();
       event.stopPropagation();
     }
-    state.modal = null;
-    emit('render');
+    emit('closeModal');
   }
 };
diff --git a/app/ui/shareDialog.js b/app/ui/shareDialog.js
index ebe42af6..0e83fe93 100644
--- a/app/ui/shareDialog.js
+++ b/app/ui/shareDialog.js
@@ -1,13 +1,7 @@
 const html = require('choo/html');
 
-/* Possible strings for l10n
-shareLinkDescription = Share the link to your file:
-shareLinkButton = Share link
-shareMessage = Download "{ $name }" with { -send-brand }: simple, safe file sharing
- */
-
 module.exports = function(name, url) {
-  return function(state, emit, close) {
+  const dialog = function(state, emit, close) {
     return html`
       <send-share-dialog
         class="flex flex-col items-center text-center p-4 max-w-sm m-auto"
@@ -16,7 +10,7 @@ module.exports = function(name, url) {
           ${state.translate('notifyUploadEncryptDone')}
         </h1>
         <p class="font-normal leading-normal text-grey-darkest word-break-all">
-          Share the link to your file:<br />
+          ${state.translate('shareLinkDescription')}<br />
           ${name}
         </p>
         <input
@@ -29,9 +23,9 @@ module.exports = function(name, url) {
         <button
           class="btn rounded-lg w-full flex-no-shrink focus:outline"
           onclick="${share}"
-          title="Share link"
+          title="${state.translate('shareLinkButton')}"
         >
-          Share link
+          ${state.translate('shareLinkButton')}
         </button>
         <button
           class="text-blue-dark hover:text-blue-darker focus:text-blue-darker my-4 font-medium cursor-pointer focus:outline"
@@ -48,8 +42,7 @@ module.exports = function(name, url) {
       try {
         await navigator.share({
           title: state.translate('-send-brand'),
-          text: `Download "${name}" with Firefox Send: simple, safe file sharing`,
-          //state.translate('shareMessage', { name }),
+          text: state.translate('shareMessage', { name }),
           url
         });
       } catch (e) {
@@ -61,4 +54,6 @@ module.exports = function(name, url) {
       close();
     }
   };
+  dialog.type = 'share';
+  return dialog;
 };
diff --git a/app/ui/surveyDialog.js b/app/ui/surveyDialog.js
new file mode 100644
index 00000000..b2dd3541
--- /dev/null
+++ b/app/ui/surveyDialog.js
@@ -0,0 +1,42 @@
+const html = require('choo/html');
+const version = require('../../package.json').version;
+const { browserName } = require('../utils');
+
+module.exports = function() {
+  return function(state, emit, close) {
+    const surveyUrl = `${
+      state.PREFS.surveyUrl
+    }?ver=${version}&browser=${browserName()}&anon=${
+      state.user.loggedIn
+    }&active_count=${state.storage.files.length}`;
+    return html`
+      <send-survey-dialog
+        class="flex flex-col items-center text-center p-4 max-w-sm m-auto"
+      >
+        <h1 class="font-bold my-4">
+          Tell us what you think.
+        </h1>
+        <p class="font-normal leading-normal text-grey-darkest px-4">
+          Love Firefox Send? Take a quick survey to let us know how we can make
+          it better.
+        </p>
+        <a
+          class="btn rounded-lg w-full flex-no-shrink focus:outline my-5"
+          onclick="${() => emit('closeModal')}"
+          title="Give feedback"
+          href="${surveyUrl}"
+          target="_blank"
+        >
+          Give feedback
+        </a>
+        <button
+          class="text-blue-dark hover:text-blue-darker focus:text-blue-darker font-medium cursor-pointer focus:outline"
+          onclick="${close}"
+          title="Skip"
+        >
+          Skip
+        </button>
+      </send-survey-dialog>
+    `;
+  };
+};
diff --git a/app/user.js b/app/user.js
index 4bf32bbc..c4303941 100644
--- a/app/user.js
+++ b/app/user.js
@@ -44,6 +44,14 @@ export default class User {
     this.storage.set('firstAction', action);
   }
 
+  get surveyed() {
+    return this.storage.get('surveyed');
+  }
+
+  set surveyed(yes) {
+    this.storage.set('surveyed', yes);
+  }
+
   get avatar() {
     const defaultAvatar = assets.get('user.svg');
     if (this.info.avatarDefault) {
diff --git a/app/utils.js b/app/utils.js
index feaa80ce..65a17262 100644
--- a/app/utils.js
+++ b/app/utils.js
@@ -14,6 +14,10 @@ function b64ToArray(str) {
   return b64.toByteArray(str + '==='.slice((str.length + 3) % 4));
 }
 
+function locale() {
+  return document.querySelector('html').lang;
+}
+
 function loadShim(polyfill) {
   return new Promise((resolve, reject) => {
     const shim = document.createElement('script');
@@ -67,8 +71,7 @@ function bytes(num) {
   let nStr = n.toFixed(decimalDigits);
   if (LOCALIZE_NUMBERS) {
     try {
-      const locale = document.querySelector('html').lang;
-      nStr = n.toLocaleString(locale, {
+      nStr = n.toLocaleString(locale(), {
         minimumFractionDigits: decimalDigits,
         maximumFractionDigits: decimalDigits
       });
@@ -85,8 +88,7 @@ function bytes(num) {
 function percent(ratio) {
   if (LOCALIZE_NUMBERS) {
     try {
-      const locale = document.querySelector('html').lang;
-      return ratio.toLocaleString(locale, { style: 'percent' });
+      return ratio.toLocaleString(locale(), { style: 'percent' });
     } catch (e) {
       // fall through
     }
@@ -96,8 +98,7 @@ function percent(ratio) {
 
 function number(n) {
   if (LOCALIZE_NUMBERS) {
-    const locale = document.querySelector('html').lang;
-    return n.toLocaleString(locale);
+    return n.toLocaleString(locale());
   }
   return n.toString();
 }
@@ -267,6 +268,7 @@ function setTranslate(t) {
 }
 
 module.exports = {
+  locale,
   fadeOut,
   delay,
   allowedCopy,
diff --git a/public/locales/en-US/send.ftl b/public/locales/en-US/send.ftl
index 96a74cce..e0caef15 100644
--- a/public/locales/en-US/send.ftl
+++ b/public/locales/en-US/send.ftl
@@ -138,3 +138,8 @@ noStreamsOptionCopy = Copy the link to open in another browser
 noStreamsOptionFirefox = Try our favorite browser
 noStreamsOptionDownload = Continue with this browser
 downloadFirefoxPromo = { -send-short-brand } is brought to you by the all-new { -firefox }.
+# the next line after the colon contains a file name
+shareLinkDescription = Share the link to your file:
+shareLinkButton = Share link
+# $name is the name of the file
+shareMessage = Download “{ $name }” with { -send-brand }: simple, safe file sharing
diff --git a/server/config.js b/server/config.js
index 2eec44a8..55cefc62 100644
--- a/server/config.js
+++ b/server/config.js
@@ -144,6 +144,11 @@ const conf = convict({
     format: String,
     default: 'https://identity.mozilla.com/apps/send',
     env: 'FXA_KEY_SCOPE'
+  },
+  survey_url: {
+    format: String,
+    default: '',
+    env: 'SURVEY_URL'
   }
 });
 
diff --git a/server/initScript.js b/server/initScript.js
index 67cc29f5..e76f931a 100644
--- a/server/initScript.js
+++ b/server/initScript.js
@@ -47,8 +47,8 @@ module.exports = function(state) {
 
   var LIMITS = ${JSON.stringify(clientConstants.LIMITS)};
   var DEFAULTS = ${JSON.stringify(clientConstants.DEFAULTS)};
-  const LOCALE = '${state.locale}';
-  const downloadMetadata = ${
+  var PREFS = ${JSON.stringify(state.prefs)};
+  var downloadMetadata = ${
     state.downloadMetadata ? raw(JSON.stringify(state.downloadMetadata)) : '{}'
   };
   ${authConfig};
diff --git a/server/state.js b/server/state.js
index f2da0175..6947a721 100644
--- a/server/state.js
+++ b/server/state.js
@@ -19,6 +19,10 @@ module.exports = async function(req) {
       // continue without accounts
     }
   }
+  const prefs = {};
+  if (config.survey_url) {
+    prefs.surveyUrl = config.survey_url;
+  }
   return {
     archive: {
       numFiles: 0
@@ -39,6 +43,7 @@ module.exports = async function(req) {
     user: { avatar: assets.get('user.svg'), loggedIn: false },
     robots,
     authConfig,
+    prefs,
     layout
   };
 };