diff --git a/browser/base/content/browser-smart-window.js b/browser/base/content/browser-smart-window.js
index bbb39f4484a27..bac35bef14814 100644
--- a/browser/base/content/browser-smart-window.js
+++ b/browser/base/content/browser-smart-window.js
@@ -128,6 +128,9 @@ var SmartWindow = {
                       type: "FXA_SMART_WINDOW_SIGNIN_FLOW",
                       data: {
                         entrypoint: "aimode",
+                        extraParams: {
+                          service: "aimode",
+                        }
                       },
                     },
                     gBrowser.selectedBrowser
diff --git a/browser/components/smartwindow/content/utils.mjs b/browser/components/smartwindow/content/utils.mjs
index a7832c950d858..997d4a9feef34 100644
--- a/browser/components/smartwindow/content/utils.mjs
+++ b/browser/components/smartwindow/content/utils.mjs
@@ -14,6 +14,11 @@ ChromeUtils.defineESModuleGetters(lazy, {
 
 import { createEngine } from "chrome://global/content/ml/EngineProcess.sys.mjs";
 import { SmartAssistEngine } from "moz-src:///browser/components/genai/SmartAssistEngine.sys.mjs";
+import { getFxAccountsSingleton } from "resource://gre/modules/FxAccounts.sys.mjs";
+import {
+  SCOPE_PROFILE,
+  OAUTH_CLIENT_ID,
+} from "resource://gre/modules/FxAccountsCommon.sys.mjs";
 
 const { ChatHistoryMessage } = ChromeUtils.importESModule(
   "resource:///modules/smartwindow/ChatHistory.sys.mjs"
@@ -382,6 +387,20 @@ const get_page_content = async ({ url, mode, page }, allowedUrls) => {
   }
 };
 
+const getFxAccountToken = async () => {
+  try {
+    const fxAccounts = getFxAccountsSingleton();
+    const token = await fxAccounts.getOAuthToken({
+      scope: SCOPE_PROFILE,
+      client_id: OAUTH_CLIENT_ID,
+    });
+    return token;
+  } catch (error) {
+    console.warn("Failed to obtain a valid FxA token:", error);
+    return null;
+  }
+};
+
 /**
  * @param {PageExtractor} pageExtractor
  * @param {string} mode
@@ -459,6 +478,7 @@ async function runExtraction(pageExtractor, mode, page, label) {
  */
 export async function* fetchWithHistory(messages, allowedUrls) {
   const engineInstance = await createOpenAIEngine();
+  const fxAccountToken = await getFxAccountToken();
 
   // Normalize roles to lowercase and handle system messages
   let convo = Array.isArray(messages)
@@ -512,6 +532,7 @@ export async function* fetchWithHistory(messages, allowedUrls) {
   const streamModelResponse = () =>
     engineInstance.runWithGenerator({
       streamOptions: { enabled: true },
+      fxAccountToken,
       tool_choice: "auto",
       tools: toolsConfig,
       args: convo,
diff --git a/browser/components/smartwindow/content/welcome.js b/browser/components/smartwindow/content/welcome.js
index 750957a88035d..a30a7656daa30 100644
--- a/browser/components/smartwindow/content/welcome.js
+++ b/browser/components/smartwindow/content/welcome.js
@@ -69,6 +69,9 @@ XPCOMUtils.defineLazyPreferenceGetter(
                   {
                     data: {
                       entrypoint: "aimode",
+                      extraParams: {
+                        service: "aimode",
+                      }
                     },
                     type: "FXA_SMART_WINDOW_SIGNIN_FLOW",
                     navigate: true,
diff --git a/toolkit/components/ml/content/backends/OpenAIPipeline.mjs b/toolkit/components/ml/content/backends/OpenAIPipeline.mjs
index cce99d8282365..113f545b4ea78 100644
--- a/toolkit/components/ml/content/backends/OpenAIPipeline.mjs
+++ b/toolkit/components/ml/content/backends/OpenAIPipeline.mjs
@@ -327,10 +327,19 @@ export class OpenAIPipeline {
     lazy.console.debug("Running OpenAI pipeline");
     try {
       const { baseURL, apiKey, modelId } = this.#options;
+      let fxAccountToken = request.fxAccountToken
+        ? request.fxAccountToken
+        : null;
+
+      const defaultHeaders = fxAccountToken
+        ? { "authorization": `Bearer ${fxAccountToken}` }
+        : undefined;
+
       const client = new OpenAIPipeline.OpenAILib.OpenAI({
         baseURL: baseURL ? baseURL : "http://localhost:11434/v1",
         apiKey: apiKey || "ollama",
         maxRetries: 10,
+        ...(defaultHeaders ? { defaultHeaders } : {}),
       });
       const stream = request.streamOptions?.enabled || false;
       const tools = request.tools || [];