Perplexity Library Missing Threads After Login: Fix

After logging into Perplexity, your Library may show zero threads or only a few recent ones. This happens when the browser stores a stale session token or when the account sync fails during authentication. This article explains why threads disappear after login and provides four proven methods to restore your full thread history.

The root cause is usually a corrupted local cache, an expired OAuth token, or a mismatch between the logged-in account and the account that created the threads. You will learn how to clear browser data, re-authenticate, check account switching, and use the web app as a fallback.

Each method targets a specific failure point. Start with the simplest fix and move down the list if threads remain missing.

Why Perplexity Library Shows No Threads After Login

Perplexity stores thread metadata in its cloud servers and links it to your account via OAuth tokens. When you log in, the browser sends a token to the server to fetch your thread list. If the token is stale, corrupted, or belongs to a different account, the server returns an empty list.

Corrupted Local Cache

Your browser caches Perplexity’s JavaScript files, API responses, and session cookies. If any of these become corrupted — for example, after a failed sync or an interrupted login — the app may fail to display threads even though they exist on the server.

Expired or Mismatched OAuth Token

Perplexity uses OAuth 2.0 through Google, Apple, or email-based login. Tokens expire after a set period. After expiration, the server rejects the token and returns an empty thread list. A mismatch happens when you sign in with a different Google account than the one that created the threads.

Browser Extension Interference

Ad blockers, privacy extensions, or script blockers can prevent Perplexity from loading thread data. Extensions like uBlock Origin or Privacy Badger may block the API endpoint that serves your thread list.

Steps to Fix Missing Threads After Login

Follow these methods in order. Test after each step before moving to the next.

Method 1: Clear Browser Cache and Site Data

1. Open your browser’s settings
   In Chrome, click the three-dot menu in the top-right corner and select Settings. In Edge, click the three-dot menu and choose Settings. In Firefox, click the hamburger menu and select Settings.
2. Navigate to Privacy and Security
   In Chrome, go to Privacy and Security > Clear browsing data. In Edge, go to Privacy, Search, and Services > Choose what to clear. In Firefox, go to Privacy and Security > Cookies and Site Data > Clear Data.
3. Select a time range of All time
   Set the time range to All time. Check the boxes for Cookies and other site data and Cached images and files. Uncheck browsing history if you want to keep it.
4. Clear the data and restart the browser
   Click Clear data. Close the browser completely, then reopen it.
5. Log in to Perplexity again
   Go to perplexity.ai, log in with your normal method, and check your Library. Threads should reappear.

Method 2: Log Out and Log Back In

1. Open Perplexity and go to Settings
   Click your profile picture or initials in the top-right corner and select Settings from the dropdown menu.
2. Scroll to the Account section
   Under Account, find the Sign Out button. Click it.
3. Close the browser tab
   Close the Perplexity tab completely. This clears any remaining session cookies.
4. Open a new tab and log in again
   Go to perplexity.ai, click Log In, and use the same login method you used originally. Verify the email address shown matches the account that owns your threads.
5. Check your Library
   Navigate to the Library page. All threads should be visible.

Method 3: Verify You Are Using the Correct Account

1. Open Perplexity Settings
   Click your profile picture and select Settings.
2. Check the email address in Account
   Look at the Email field under Account. If it shows a different email than the one you normally use, you are logged into the wrong account.
3. Sign out and sign in with the correct account
   If the email is wrong, sign out. Then sign in using the correct Google, Apple, or email account.
4. Check your Library again
   After signing in with the right account, your threads should appear.

Method 4: Disable Browser Extensions Temporarily

1. Open your browser’s extension manager
   In Chrome, type chrome://extensions in the address bar. In Edge, type edge://extensions. In Firefox, type about:addons.
2. Disable ad blockers and privacy extensions
   Toggle off uBlock Origin, Privacy Badger, Ghostery, or any similar extension. Do not disable password managers or translation tools.
3. Restart the browser
   Close and reopen the browser to ensure extensions are fully disabled.
4. Log in to Perplexity and check Library
   Go to perplexity.ai, log in, and verify threads are visible. If they are, re-enable extensions one by one to identify the culprit.

If Perplexity Still Shows No Threads After These Fixes

Threads Disappear Only on Mobile App After Login

On iOS or Android, the Perplexity app may cache thread data locally. Force close the app by swiping it away from the recent apps list. Reopen the app and log in again. If threads remain missing, uninstall and reinstall the app from the App Store or Google Play.

Threads Are Visible on Web But Not on Mobile

This indicates a mobile sync delay. Open the mobile app, pull down on the Library screen to trigger a manual refresh, and wait 10 seconds. If threads still do not appear, log out of the mobile app and log back in.

Library Shows Zero Threads After Switching From Free to Pro

Threads are tied to your account, not your subscription tier. If you see zero threads after upgrading, you likely logged in with a different email during the upgrade process. Go to Settings and confirm the email address matches your original account. If it does not, contact Perplexity support at support@perplexity.ai and request an account merge.

Perplexity Free vs Pro: Thread Storage and Sync Behavior

Item	Free	Pro
Thread storage limit	Unlimited for past 30 days	Unlimited for all time
Sync across devices	Yes, with same account	Yes, with same account
Thread export option	None	CSV and PDF export
OAuth token expiry	7 days	30 days

Both tiers rely on the same OAuth authentication flow. If your token expires or is mismatched, the Library will appear empty regardless of your subscription level. Pro users benefit from longer token lifetimes, which reduces the frequency of this issue.

If you regularly use Perplexity on multiple devices, consider using the web app as your primary interface. Browser-based logins are less prone to cache corruption than mobile apps. You can also bookmark the Library page directly at perplexity.ai/library for quick access.