Performance and connectivity Deal with error messages, crashing applications, connectivity issues, and slow performance. NgesiNgisi How to troubleshoot time related errors on secure websites Captive portal detection How to troubleshoot security error codes on secure websites Manage the devices linked to your Mozilla account What do the security warning codes mean? Connection settings in Firefox Mozilla VPN won’t connect or keeps disconnecting - How to fix Resist Fingerprinting Firefox can't load websites but other browsers can Browsing history in Firefox - View the websites you have visited Firefox DNS over HTTPS Multi-Hop - Encrypt your data twice for enhanced security while using Mozilla VPN Firefox blocked by macOS 15 Sequoia firewall - What you need to know DNS over HTTPS (DoH) FAQs How can I tell if Mozilla VPN is connected? How to let Firefox use the internet on your Windows computer Disable Firefox Sync Report Site Issues on Firefox for iOS Joining public WiFi while on Mozilla VPN Address screen sharing issues with Firefox on macOS 15 Sequoia Server Not Found - Troubleshoot connection problems How to resolve weak crypto error messages on Firefox Certificate warnings in Firefox for iOS How to obtain the Mozilla VPN Logs What is the Mozilla VPN kill switch? Connecting to unsecured networks while using Mozilla VPN Firefox for iOS won't load web pages Fritz!box isn't working when Mozilla VPN is on Exclude applications from Mozilla VPN protection Troubleshooting speed issues on Mozilla VPN How to enable Always-on VPN on Android Search your browsing history in Firefox for iOS Why do I see a white screen after updating Mozilla VPN to version 2.8.3? RCS messaging and Mozilla VPN