Firefox for Android suddenly logging you out of accounts? It’s frustrating when your session vanishes mid-browsing. This usually isn’t a bug—it’s often a setting or cache hiccup. Below, we’ll walk through the simplest fixes.
It happens to everyone.
1. Check Your Sync Settings
Your Firefox sync settings might be too aggressive. If "Sync on Wi-Fi only" is enabled, switching networks can trigger a logout.
2. Clear Cache and Cookies (Carefully)
Clearing cache alone won’t break logins. But clearing cookies resets session data—so do it selectively. Go to Settings > Privacy > Clear Browsing Data, then uncheck "History" and only check "Cookies." This keeps your saved sessions intact.
3. Disable Battery Optimization for Firefox
Android sometimes kills background processes to save battery. If Firefox gets shut down while you’re away, it’ll log you out when you reopen it.
To fix this, go to Settings > Apps > Firefox > Battery, then disable "Optimize battery usage" or set it to "Never optimize."
Final thoughts
Most logouts are about settings, not bugs. Start with sync and battery tweaks—90% of cases resolve there.
If you’re still stuck, check for a Firefox update or try reinstalling the app (no data loss).