diff --git a/browser/speedreader/speedreader_tab_helper.cc b/browser/speedreader/speedreader_tab_helper.cc
index dbb9b3dd33ac..042bd6bf0bd9 100644
--- a/browser/speedreader/speedreader_tab_helper.cc
+++ b/browser/speedreader/speedreader_tab_helper.cc
@@ -52,6 +52,11 @@ namespace speedreader {
 std::u16string GetSpeedreaderData(
     std::initializer_list<std::pair<base::StringPiece, int>> resources) {
   std::u16string result = u"speedreaderData = {";
+
+  if (kSpeedreaderTTS.Get()) {
+    result += u"ttsEnabled: true,";
+  }
+
   for (const auto& r : resources) {
     auto text = brave_l10n::GetLocalizedResourceUTF16String(r.second);
     // Make sure that the text doesn't contain js injection
diff --git a/browser/ui/webui/speedreader/speedreader_toolbar_ui.cc b/browser/ui/webui/speedreader/speedreader_toolbar_ui.cc
index 853c2f1faeff..25d66a15848f 100644
--- a/browser/ui/webui/speedreader/speedreader_toolbar_ui.cc
+++ b/browser/ui/webui/speedreader/speedreader_toolbar_ui.cc
@@ -12,6 +12,7 @@
 #include "brave/components/constants/webui_url_constants.h"
 #include "brave/components/l10n/common/localization_util.h"
 #include "brave/components/speedreader/common/constants.h"
+#include "brave/components/speedreader/common/features.h"
 #include "brave/components/speedreader/resources/panel/grit/brave_speedreader_toolbar_generated_map.h"
 #include "build/build_config.h"
 #include "chrome/browser/profiles/profile.h"
@@ -52,6 +53,9 @@ SpeedreaderToolbarUI::SpeedreaderToolbarUI(content::WebUI* web_ui,
 #else
   source->AddBoolean("aiChatFeatureEnabled", false);
 #endif
+  source->AddBoolean("ttsEnabled",
+                     speedreader::features::IsSpeedreaderEnabled() &&
+                         speedreader::kSpeedreaderTTS.Get());
 }
 
 SpeedreaderToolbarUI::~SpeedreaderToolbarUI() = default;
diff --git a/components/speedreader/common/features.cc b/components/speedreader/common/features.cc
index 288598b875e0..1ba5ca98db23 100644
--- a/components/speedreader/common/features.cc
+++ b/components/speedreader/common/features.cc
@@ -18,4 +18,7 @@ BASE_FEATURE(kSpeedreaderFeature,
 const base::FeatureParam<int> kSpeedreaderMinOutLengthParam{
     &kSpeedreaderFeature, "min_out_length", 1000};
 
+const base::FeatureParam<bool> kSpeedreaderTTS{&kSpeedreaderFeature, "tts",
+                                               false};
+
 }  // namespace speedreader
diff --git a/components/speedreader/common/features.h b/components/speedreader/common/features.h
index c7b82e100c36..1e846ce9c365 100644
--- a/components/speedreader/common/features.h
+++ b/components/speedreader/common/features.h
@@ -12,6 +12,7 @@
 namespace speedreader {
 BASE_DECLARE_FEATURE(kSpeedreaderFeature);
 extern const base::FeatureParam<int> kSpeedreaderMinOutLengthParam;
+extern const base ::FeatureParam<bool> kSpeedreaderTTS;
 }  // namespace speedreader
 
 #endif  // BRAVE_COMPONENTS_SPEEDREADER_COMMON_FEATURES_H_
diff --git a/components/speedreader/resources/panel/components/lists/index.tsx b/components/speedreader/resources/panel/components/lists/index.tsx
index 7dff99703235..183d27cb4693 100644
--- a/components/speedreader/resources/panel/components/lists/index.tsx
+++ b/components/speedreader/resources/panel/components/lists/index.tsx
@@ -36,6 +36,7 @@ const mainButtonsOptions = [
     id: 'tts',
     type: MainButtonType.TextToSpeech,
     iconName: 'headphones',
+    hidden: !loadTimeData.getBoolean('ttsEnabled'),
     title: getLocale('braveReaderModeTextToSpeech')
   },
   {
diff --git a/components/speedreader/resources/speedreader-desktop.js b/components/speedreader/resources/speedreader-desktop.js
index b2964640439b..1bbc62694b79 100644
--- a/components/speedreader/resources/speedreader-desktop.js
+++ b/components/speedreader/resources/speedreader-desktop.js
@@ -9,6 +9,14 @@ const readTimeDivId = 'da24e4ef-db57-4b9f-9fa5-548924fc9c32'
 const metaDataDivId = '3bafd2b4-a87d-4471-8134-7a9cca092000'
 const contentDivId = '7c08a417-bf02-4241-a55e-ad5b8dc88f69'
 
+const defaultSpeedreaderData = {
+    showOriginalLinkText: 'View original',
+    playButtonTitle: 'Play/Pause',
+    averageWordsPerMinute: 265,
+    minutesText: 'min. read',
+    ttsEnabled: false,
+}
+
 const $ = (id) => {
     return document.getElementById(id)
 }
@@ -41,13 +49,6 @@ const calculateReadtime = () => {
     readTimeDiv.innerText = minutes + ' ' + speedreaderData.minutesText
 }
 
-const defaultSpeedreaderData = {
-    showOriginalLinkText: 'View original',
-    playButtonTitle: 'Play/Pause',
-    averageWordsPerMinute: 265,
-    minutesText: 'min. read',
-}
-
 const getTextContent = (element) => {
     if (!element) {
         return null
@@ -60,7 +61,7 @@ const getTextContent = (element) => {
 }
 
 const initTextToSpeak = () => {
-    if (navigator.userAgentData.mobile) {
+    if (navigator.userAgentData.mobile || !speedreaderData.ttsEnabled) {
         return
     }