How to Fix Proton Pass Not Working in 2026
If Proton Pass is not working, the cause is usually a browser extension issue, sync problem, app setting, or account authentication failure.
This guide walks through the most effective fixes for Proton Pass on desktop and mobile, so you can restore password management, autofill, and secure vault access quickly.
Check Whether the Problem Is Account-Wide or Device-Specific
Before changing settings, determine whether Proton Pass fails everywhere or only on one device.
This helps narrow the issue to your Proton account, browser extension, mobile app, or operating system.
- Test Proton Pass on another browser or device.
- Sign in to the Proton Pass web app and confirm your vault loads.
- Check whether autofill fails only on specific websites.
- Verify that other Proton services, such as Proton Mail or Proton VPN, can sign in normally.
If the issue appears only on one browser or phone, the fix is often local rather than account-related.
Make Sure Proton Pass Is Up to Date
Outdated software is a common reason for Proton Pass malfunctions.
Proton regularly releases updates for the web app, browser extension, Android app, and iOS app to improve compatibility and security.
- Update the Proton Pass browser extension from the Chrome Web Store, Firefox Add-ons, or Microsoft Edge Add-ons.
- Update the Proton Pass mobile app from the Apple App Store or Google Play Store.
- Refresh your browser after updating the extension.
- Restart your device after installing app updates.
If Proton Pass stopped working after an update, reinstalling the extension or app can remove corrupted files and reset broken components.
Sign Out and Sign Back In
Authentication problems can prevent Proton Pass from loading vault data, syncing credentials, or displaying saved logins.
A full sign-out and sign-in often clears temporary session errors.
- Open Proton Pass and sign out of your account.
- Close the browser or force quit the app.
- Reopen Proton Pass and sign in again with your Proton Account credentials.
- Complete any two-factor authentication prompts if enabled.
If you use Proton SSO or a password manager with multiple identities, confirm you are signing into the correct Proton account.
Check Internet Access and Proton Service Status
Proton Pass depends on a stable internet connection to sync encrypted vault data.
Weak connectivity, VPN conflicts, firewall rules, or a service outage can make it appear broken.
- Switch from Wi-Fi to mobile data, or vice versa, and test again.
- Disable VPNs, proxies, or privacy tools temporarily.
- Check firewall and antivirus settings if you are on Windows or macOS.
- Review Proton’s status page for service incidents or maintenance.
If the app loads slowly but eventually works, the issue may be network latency rather than a full outage.
Fix Browser Extension Problems
For many users, the browser extension is where Proton Pass not working becomes most obvious.
Autofill, login capture, and password generation may fail if the extension lacks permissions or conflicts with browser settings.
Verify Extension Permissions
Proton Pass needs permission to read and write on supported websites.
Without the right access, autofill and password detection may fail.
- Open your browser’s extension settings.
- Confirm Proton Pass is enabled.
- Allow it to run in private or incognito windows if needed.
- Grant site access for the pages where autofill is failing.
Clear Extension Data and Reinstall
Corrupted extension storage can prevent Proton Pass from opening correctly.
Removing and reinstalling it often fixes the issue.
- Remove the Proton Pass extension from your browser.
- Restart the browser.
- Install the extension again from the official store.
- Sign in and test autofill on a login page.
Check for Browser Conflicts
Other extensions, especially ad blockers, script blockers, privacy tools, or competing password managers, can interfere with Proton Pass.
- Temporarily disable other extensions.
- Test Proton Pass in a clean browser profile.
- Disable built-in browser password managers if they conflict with autofill.
- Update the browser itself to the latest version.
Reset Autofill and Website Permissions
If Proton Pass opens but does not autofill, the issue may be tied to browser permissions or the structure of the website itself.
Some sites use custom login forms that need manual interaction before autofill works.
- Click the Proton Pass extension icon on the login page.
- Use the manual copy-and-paste option for username and password.
- Check whether the website is loaded inside an iframe or popup.
- Reload the page and try autofill again after the form is fully visible.
On some browsers, cross-site tracking protections may reduce autofill reliability.
Allowing the site temporarily or using the extension icon directly can help.
Troubleshoot Mobile App Issues
On Android and iPhone, Proton Pass may fail because autofill is not enabled at the system level or the app does not have the right keyboard, accessibility, or battery permissions.
Enable Autofill on Android
- Open Android Settings.
- Go to Passwords, passkeys, and autofill or the equivalent autofill menu.
- Set Proton Pass as the default autofill service.
- Allow any accessibility or battery optimization exceptions required by your device.
Enable Autofill on iPhone
- Open iOS Settings.
- Go to Passwords.
- Select Password Options or Autofill Passwords.
- Turn on Proton Pass as an autofill provider.
If autofill still fails on mobile, force close the app, restart the phone, and reinstall Proton Pass if necessary.
Clear Cache or App Data
Temporary files can become corrupted and interfere with login synchronization or the interface.
Clearing cache is especially useful when Proton Pass opens to a blank screen, freezes, or loops during loading.
- On desktop, clear the browser cache for the affected browser.
- On Android, clear the app cache from system settings.
- On iPhone, reinstalling the app is often the closest equivalent to clearing app data.
- After clearing data, sign in again and test your vault.
Be careful not to delete stored vault data manually from unsupported folders.
Proton Pass encrypts your data, but you still want to follow official app and browser removal steps.
Review Passwordless Login, Passkeys, and Two-Factor Authentication
Proton Pass supports passkeys and secure login flows, but issues can arise if your device time is wrong or your authentication setup is incomplete.
Passkey prompts may fail if the device or browser is not compatible.
- Make sure your device date and time are set automatically.
- Confirm the browser supports WebAuthn and passkeys.
- Check that your two-factor authentication app is working.
- Try logging in from a different device to isolate the problem.
If you recently changed your Proton password or recovery method, re-authenticate the app to refresh the session.
When to Contact Proton Support
If you have already updated the app, reinstalled the extension, checked network access, and verified permissions, the issue may be account-specific or related to an uncommon bug.
Proton Support can help review login failures, sync errors, and browser compatibility problems.
- Include your device model and operating system version.
- List the browser name and version if the extension is affected.
- Describe whether the issue involves login, autofill, passkeys, or vault sync.
- Note whether the problem started after an update or settings change.
Clear troubleshooting details help support diagnose the issue faster and determine whether it is a known problem.
Quick Fix Checklist for Proton Pass
- Confirm the issue is not limited to one device or browser.
- Update Proton Pass, your browser, and your phone OS.
- Sign out and sign back in.
- Disable conflicting extensions and VPNs.
- Reinstall the browser extension or mobile app.
- Enable autofill permissions on Android or iOS.
- Check Proton’s status page for outages.
By working through these steps in order, you can usually identify why Proton Pass is not working and restore normal password manager behavior without guesswork.