Seeing that "session expired" message on Facebook can be frustrating, but it's usually easy to fix. This error typically appears when your login session becomes invalid due to extended inactivity, browser problems, or security setting changes.
Facebook uses sessions to keep you logged in while you browse, but these sessions expire automatically as a security measure to protect your account from unauthorized access.
Quick Fixes for Facebook Session Expired Error
1. Check if Facebook is Down
Before troubleshooting your device, verify that Facebook isn't experiencing server issues.
2. Force Quit and Relaunch the App
The simplest solution is often to force quit the Facebook app and reopen it. This clears temporary glitches and refreshes your session.

3. Clear Cache and Data
Your browser or app cache can cause session conflicts. Clearing this data often resolves the session expired error.
On Android:
- Go to Settings > Apps > Facebook
- Tap Storage > Clear Cache
On iPhone:
- Open Facebook app
- Tap your profile picture
- Go to Settings & Privacy > Settings
- Scroll down and tap Browser
- Tap Clear next to "Cookies and cache"

4. Update the Facebook App
Outdated app versions can cause compatibility issues with Facebook's security systems. Check your app store for updates and install the latest version.
5. Check Your Internet Connection
A stable internet connection is essential for maintaining Facebook sessions.
Wi-Fi troubleshooting:
- Verify your device is connected to Wi-Fi
- Restart your router if needed
- Check if other websites load properly
Mobile data troubleshooting:
- Ensure mobile data is enabled
- Check signal strength
- Verify Facebook has permission to use mobile data
6. Enable Cellular Data for Facebook
If you're using mobile data, make sure Facebook has permission to access it:
- Go to Settings > Cellular
- Scroll to Facebook
- Toggle Cellular Data on
7. Test Facebook on Another Device
Try accessing Facebook from a different phone or through the web browser. If it works elsewhere, the issue is likely with your device or app installation.
8. Reinstall the Facebook App
If other methods fail, reinstalling the app can resolve persistent issues:
- Delete the Facebook app
- Restart your device
- Reinstall from your app store
Advanced Troubleshooting Methods
Clear Browser Cache and Cookies
If you're using Facebook in a web browser, clearing browsing data can resolve session issues.
Chrome:
- Click the three-dot menu
- Go to More Tools > Clear Browsing Data
- Select "Cookies and other site data" and "Cached images and files"

Safari:
- Go to Safari menu > Preferences
- Select Privacy tab
- Click "Manage Website Data"
- Remove all data

Firefox:
- Go to Firefox menu > Preferences
- Select Privacy & Security
- Click "Clear Data"
- Select "Cookies" and "Cache web content"

Check Security Software
Antivirus and security software can sometimes interfere with Facebook's session management. Temporarily disable these programs to see if they're causing the issue.
Try a Different Browser
If the problem persists in one browser, try accessing Facebook from Chrome, Firefox, Safari, or another browser to isolate the issue.
Disable Browser Extensions
Some browser extensions, particularly ad blockers and anti-tracking tools, can disrupt Facebook sessions. Temporarily disable extensions to test if they're causing conflicts.
Preventing Future Session Expiration
To minimize session expiration issues:
- Keep your browser and Facebook app updated
- Clear browser cache regularly
- Avoid using too many browser extensions
- Maintain stable internet connections
- Don't stay inactive on Facebook for extended periods
Remember that session expiration is primarily a security feature designed to protect your account. These troubleshooting steps should help you quickly regain access and prevent future interruptions.