diff --git a/test/integration/stamp_editor_spec.mjs b/test/integration/stamp_editor_spec.mjs
index fed856d8627a2..303d9e2d0b165 100644
--- a/test/integration/stamp_editor_spec.mjs
+++ b/test/integration/stamp_editor_spec.mjs
@@ -16,6 +16,7 @@
 import {
   applyFunctionToEditor,
   awaitPromise,
+  clearInput,
   closePages,
   copy,
   copyToClipboard,
@@ -24,6 +25,7 @@ import {
   getFirstSerialized,
   getRect,
   getSerialized,
+  isVisible,
   kbBigMoveDown,
   kbBigMoveRight,
   kbSelectAll,
@@ -39,6 +41,7 @@ import {
   waitForSelectedEditor,
   waitForSerialized,
   waitForStorageEntries,
+  waitForUnselectedEditor,
 } from "./test_utils.mjs";
 import { fileURLToPath } from "url";
 import fs from "fs";
@@ -835,4 +838,228 @@ describe("Stamp Editor", () => {
       }
     });
   });
+
+  describe("New alt-text flow", () => {
+    let pages;
+
+    beforeAll(async () => {
+      pages = await loadAndWait(
+        "empty.pdf",
+        ".annotationEditorLayer",
+        null,
+        null,
+        {
+          enableAltText: true,
+          enableUpdatedAddImage: true,
+          enableGuessAltText: true,
+        }
+      );
+    });
+
+    afterEach(async () => {
+      for (const [, page] of pages) {
+        if (await isVisible(page, "#newAltTextDialog")) {
+          await page.keyboard.press("Escape");
+          await page.waitForSelector("#newAltTextDisclaimer", {
+            visible: false,
+          });
+        }
+        await page.evaluate(() => {
+          window.uiManager.reset();
+        });
+        // Disable editing mode.
+        await switchToStamp(page, /* disable */ true);
+      }
+    });
+
+    afterAll(async () => {
+      await closePages(pages);
+    });
+
+    it("must check the new alt text flow (part 1)", async () => {
+      // Run sequentially to avoid clipboard issues.
+      for (const [browserName, page] of pages) {
+        await switchToStamp(page);
+
+        // Add an image.
+        await copyImage(page, "../images/firefox_logo.png", 0);
+        const editorSelector = getEditorSelector(0);
+        await page.waitForSelector(editorSelector);
+        await waitForSerialized(page, 1);
+
+        // Wait for the dialog to be visible.
+        await page.waitForSelector("#newAltTextDialog", { visible: true });
+        // Wait for the spinner to be visible.
+        await page.waitForSelector("#newAltTextDescriptionContainer.loading");
+        // Check we've the disclaimer.
+        await page.waitForSelector("#newAltTextDisclaimer", { visible: true });
+
+        // Check that the dialog has the correct title: "Edit..."
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Edit')"
+        );
+
+        // Check that AI guessed the correct alt text.
+        await page.waitForFunction(
+          `document.getElementById("newAltTextDescriptionTextarea").value ===
+            "Fake alt text"`
+        );
+
+        // Check that the dialog has the correct title: "Edit..."
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Edit')"
+        );
+
+        // Check we've the disclaimer.
+        await page.waitForSelector("#newAltTextDisclaimer", { visible: true });
+
+        // Clear the input and check that the title changes to "Add..."
+        await clearInput(
+          page,
+          "#newAltTextDescriptionTextarea",
+          /* waitForInputEvent = */ true
+        );
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Add')"
+        );
+
+        // Check we haven't the disclaimer.
+        await page.waitForSelector("#newAltTextDisclaimer", { visible: false });
+
+        // Add a new alt text and check that the title changes to "Edit..."
+        await page.type("#newAltTextDescriptionTextarea", "Hello World");
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Edit')"
+        );
+
+        // Check we haven't the disclaimer after the modification.
+        await page.waitForSelector("#newAltTextDisclaimer", { visible: false });
+
+        // Click on the Not Now button.
+        await page.click("#newAltTextNotNow");
+        await page.waitForSelector("#newAltTextDialog", { visible: false });
+        await waitForSelectedEditor(page, editorSelector);
+
+        // Wait for the alt-text button to be visible.
+        const buttonSelector = `${editorSelector} button.altText.new`;
+        await page.waitForSelector(buttonSelector, { visible: true });
+
+        // Check the text in the button.
+        let text = await page.evaluate(
+          sel => document.querySelector(sel).textContent,
+          buttonSelector
+        );
+        let ariaLabel = await page.evaluate(
+          sel => document.querySelector(sel).getAttribute("aria-label"),
+          buttonSelector
+        );
+        expect(text === ariaLabel && text)
+          .withContext(`In ${browserName}`)
+          .toEqual("Review alt text");
+
+        // Unselect and select the editor and check that the badge is visible.
+        await page.keyboard.press("Escape");
+        await waitForUnselectedEditor(page, editorSelector);
+        await page.waitForSelector(".editToolbar", { visible: false });
+        await page.waitForSelector(".noAltTextBadge", { visible: true });
+
+        await page.evaluate(() => {
+          window.uiManager.selectAll();
+        });
+        await waitForSelectedEditor(page, editorSelector);
+        await page.waitForSelector(".editToolbar", { visible: true });
+        await page.waitForSelector(".noAltTextBadge", { visible: false });
+
+        // Click on the Review button.
+        await page.click(buttonSelector);
+        await page.waitForSelector("#newAltTextDialog", { visible: true });
+
+        // Check that the dialog has the correct title: "Edit..."
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Edit')"
+        );
+
+        // Click on create automatically toggle button.
+        await page.click("#newAltTextCreateAutomaticallyButton");
+        await clearInput(
+          page,
+          "#newAltTextDescriptionTextarea",
+          /* waitForInputEvent = */ true
+        );
+
+        // Save the empty text.
+        await page.click("#newAltTextSave");
+        await page.waitForSelector("#newAltTextDialog", { visible: false });
+        await waitForSelectedEditor(page, editorSelector);
+        await page.waitForSelector(buttonSelector, { visible: true });
+
+        // Check the text in the button.
+        text = await page.evaluate(
+          sel => document.querySelector(sel).textContent,
+          buttonSelector
+        );
+        ariaLabel = await page.evaluate(
+          sel => document.querySelector(sel).getAttribute("aria-label"),
+          buttonSelector
+        );
+        expect(text === ariaLabel && text)
+          .withContext(`In ${browserName}`)
+          .toEqual("Missing alt text");
+
+        // Unselect and select the editor and check that the badge is visible.
+        await page.keyboard.press("Escape");
+        await waitForUnselectedEditor(page, editorSelector);
+        await page.waitForSelector(".editToolbar", { visible: false });
+        await page.waitForSelector(".noAltTextBadge", { visible: true });
+        await page.evaluate(() => {
+          window.uiManager.selectAll();
+        });
+        await waitForSelectedEditor(page, editorSelector);
+        await page.waitForSelector(".editToolbar", { visible: true });
+        await page.waitForSelector(".noAltTextBadge", { visible: false });
+
+        // Click on the Review button.
+        await page.click(buttonSelector);
+        await page.waitForSelector("#newAltTextDialog", { visible: true });
+
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Add')"
+        );
+        // Add a new alt text and check that the title changes to "Edit..."
+        await page.type("#newAltTextDescriptionTextarea", "Hello World");
+        await page.waitForFunction(
+          "document.getElementById('newAltTextTitle').textContent.startsWith('Edit')"
+        );
+
+        // Click on the Save button.
+        await page.click("#newAltTextSave");
+        await page.waitForSelector("#newAltTextDialog", { visible: false });
+
+        // Check the text in the button.
+        text = await page.evaluate(
+          sel => document.querySelector(sel).firstChild.textContent,
+          buttonSelector
+        );
+        ariaLabel = await page.evaluate(
+          sel => document.querySelector(sel).getAttribute("aria-label"),
+          buttonSelector
+        );
+        expect(text === ariaLabel && text)
+          .withContext(`In ${browserName}`)
+          .toEqual("Alt text added");
+
+        await page.hover(buttonSelector);
+
+        // Wait for the tooltip to be visible.
+        const tooltipSelector = `${buttonSelector} .tooltip`;
+        await page.waitForSelector(tooltipSelector, { visible: true });
+
+        const tooltipText = await page.evaluate(
+          sel => document.querySelector(`${sel}`).textContent,
+          tooltipSelector
+        );
+        expect(tooltipText).toEqual("Hello World");
+      }
+    });
+  });
 });
diff --git a/test/integration/test_utils.mjs b/test/integration/test_utils.mjs
index be2bbbcb54007..89281a33b6a60 100644
--- a/test/integration/test_utils.mjs
+++ b/test/integration/test_utils.mjs
@@ -84,6 +84,13 @@ function closePages(pages) {
   return Promise.all(pages.map(([_, page]) => closeSinglePage(page)));
 }
 
+function isVisible(page, selector) {
+  return page.evaluate(
+    sel => document.querySelector(sel)?.checkVisibility(),
+    selector
+  );
+}
+
 async function closeSinglePage(page) {
   // Avoid to keep something from a previous test.
   await page.evaluate(async () => {
@@ -119,13 +126,23 @@ function waitForTimeout(milliseconds) {
   });
 }
 
-async function clearInput(page, selector) {
-  await page.click(selector);
-  await kbSelectAll(page);
-  await page.keyboard.press("Backspace");
-  await page.waitForFunction(
-    `document.querySelector('${selector}').value === ""`
-  );
+async function clearInput(page, selector, waitForInputEvent = false) {
+  const action = async () => {
+    await page.click(selector);
+    await kbSelectAll(page);
+    await page.keyboard.press("Backspace");
+    await page.waitForFunction(
+      `document.querySelector('${selector}').value === ""`
+    );
+  };
+  return waitForInputEvent
+    ? waitForEvent({
+        page,
+        eventName: "input",
+        action,
+        selector,
+      })
+    : action();
 }
 
 function getSelector(id) {
@@ -711,6 +728,7 @@ export {
   getSerialized,
   getSpanRectFromText,
   hover,
+  isVisible,
   kbBigMoveDown,
   kbBigMoveLeft,
   kbBigMoveRight,
diff --git a/web/app.js b/web/app.js
index d4d18516eaafc..1a6969ef59f87 100644
--- a/web/app.js
+++ b/web/app.js
@@ -385,6 +385,21 @@ const PDFViewerApplication = {
           parseInt(params.get("spreadmodeonload"))
         );
       }
+      if (params.has("enablealttext")) {
+        AppOptions.set("enableAltText", params.get("enablealttext") === "true");
+      }
+      if (params.has("enableupdatedaddimage")) {
+        AppOptions.set(
+          "enableUpdatedAddImage",
+          params.get("enableupdatedaddimage") === "true"
+        );
+      }
+      if (params.has("enableguessalttext")) {
+        AppOptions.set(
+          "enableGuessAltText",
+          params.get("enableguessalttext") === "true"
+        );
+      }
     }
   },