What causes "Grammarly Keeps Logging Me Out"?

Browser set to delete cookies and site data on close Antivirus or cleaner apps (e.g. CCleaner) wiping cookies VPN, proxy or firewall blocking login confirmation (desktop app) Corrupted saved credentials on macOS Another Safari extension interfering

How do I fix "Grammarly Keeps Logging Me Out"?

1. Allow site data in Chrome: Go to chrome://settings/content/siteData Turn on 'Allow sites to save data on your device' 2. Stop clearing data on exit: Edge: edge://settings/clearBrowsingDataOnClose - turn off all toggles Firefox: about:preferences#privacy - uncheck 'Delete cookies and site data when Firefox is closed' or add grammarly.com as an exception 3. Exclude Grammarly from cleaner apps: Configure antivirus/cleaner apps not to clear cookies on browser exit 4. Reset desktop credentials (Mac): Quit Grammarly In Terminal run the 'security delete-generic-password' commands from Grammarly's help article for the com.grammarly.ProjectLlama entries Reopen Grammarly Desktop and sign in 5. Reinstall the desktop app (Windows): Turn off VPN/proxy/firewall temporarily Uninstall via Apps and Features Reinstall from grammarly.com/desktop and choose 'Log in to existing account'

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Grammarly Keeps Logging Me Out

Workaround available Chrome, Edge, Firefox, Safari, Windows, Mac Updated October 21, 2026

Quick answer

Grammarly stays signed in until cookies are cleared, so repeated logouts mean your browser, antivirus or a cleaner app is deleting site data. Allow sites to save data and stop clearing cookies on exit; on Mac desktop, clear saved credentials.

Most likely fix: Allow site data in Chrome.

Symptoms

Asked to log in every day, the extension shows signed out, or the desktop app won't keep you logged in.

Why it happens

Browser set to delete cookies and site data on close
Antivirus or cleaner apps (e.g. CCleaner) wiping cookies
VPN, proxy or firewall blocking login confirmation (desktop app)
Corrupted saved credentials on macOS
Another Safari extension interfering

How to fix it

Try these in order — the most common fix is first.

1. Allow site data in Chrome
1. Go to chrome://settings/content/siteData
2. Turn on 'Allow sites to save data on your device'
2. Stop clearing data on exit
1. Edge: edge://settings/clearBrowsingDataOnClose - turn off all toggles
2. Firefox: about:preferences#privacy - uncheck 'Delete cookies and site data when Firefox is closed' or add grammarly.com as an exception
3. Exclude Grammarly from cleaner apps
1. Configure antivirus/cleaner apps not to clear cookies on browser exit
4. Reset desktop credentials (Mac)
1. Quit Grammarly
2. In Terminal run the 'security delete-generic-password' commands from Grammarly's help article for the com.grammarly.ProjectLlama entries
3. Reopen Grammarly Desktop and sign in
5. Reinstall the desktop app (Windows)
1. Turn off VPN/proxy/firewall temporarily
2. Uninstall via Apps and Features
3. Reinstall from grammarly.com/desktop and choose 'Log in to existing account'

This guide also covers

grammarly keeps logging me out
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