diff --git a/l10n/en-US/viewer.ftl b/l10n/en-US/viewer.ftl
index 1d0e9ed02a4bc..895b48fbb855c 100644
--- a/l10n/en-US/viewer.ftl
+++ b/l10n/en-US/viewer.ftl
@@ -46,6 +46,10 @@ pdfjs-save-button =
     .title = Save
 pdfjs-save-button-label = Save
 
+pdfjs-save-button-with-aria-label =
+    .title = Save
+    .aria-label = Save
+
 # Used in Firefox for Android as a tooltip for the download button (“download” is a verb).
 pdfjs-download-button =
     .title = Download
diff --git a/test/integration/viewer_spec.mjs b/test/integration/viewer_spec.mjs
index 5c634b40b90b5..a92b9a45afc84 100644
--- a/test/integration/viewer_spec.mjs
+++ b/test/integration/viewer_spec.mjs
@@ -34,6 +34,30 @@ import { PNG } from "pngjs";
 const __dirname = import.meta.dirname;
 
 describe("PDF viewer", () => {
+  describe("Toolbar accessibility", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("tracemonkey.pdf", ".textLayer .endOfContent");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("exposes an accessible name for the save button", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          const ariaLabel = await page.$eval(
+            "#downloadButton",
+            button => button.getAttribute("aria-label")
+          );
+          expect(ariaLabel).withContext(`In ${browserName}`).toEqual("Save");
+        })
+      );
+    });
+  });
+
   describe("EFOpen attachments", () => {
     let pages;
 
diff --git a/web/viewer.html b/web/viewer.html
index 198b2eaeb06f2..cfb4426e9ddc5 100644
--- a/web/viewer.html
+++ b/web/viewer.html
@@ -658,7 +658,7 @@
                     <span data-l10n-id="pdfjs-print-button-label"></span>
                   </button>
 
-                  <button id="downloadButton" class="toolbarButton" type="button" tabindex="0" data-l10n-id="pdfjs-save-button">
+                  <button id="downloadButton" class="toolbarButton" type="button" tabindex="0" data-l10n-id="pdfjs-save-button-with-aria-label">
                     <span data-l10n-id="pdfjs-save-button-label"></span>
                   </button>
                 </div>