
How to Fix Firefox Not Responding on Windows 10
Firefox becomes unresponsive on Windows 10 for various reasons—a stuck process, corrupted profile...
Software troubleshooting desk

Firefox becomes unresponsive on Windows 10 for various reasons—a stuck process, corrupted profile...

You open Windows Security and see a proxy error, or your system reports that Windows Security can...

You open Windows Terminal, try to change a profile setting — maybe the font size, background imag...

You try to open Windows Security or change a setting, and you get an "Access Denied" message. Thi...

You try to open a file and see a message like "The file is locked" or "Access denied." Sometimes ...

You're working in Chrome and suddenly get a 400 error: token expired. This usual...