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This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Performance and connectivity

Deal with error messages, crashing applications, connectivity issues, and slow performance.

Detecció de portal cautiu

Pàgina que descriu com Firefox detecta les xarxes amb portal cautiu.

Actualitzat per darrera vegada el: 10/31/2023

In English

How to troubleshoot time related errors on secure websites

Connection settings in Firefox

How to troubleshoot security error codes on secure websites

Manage the devices linked to your Mozilla account

What do the security warning codes mean?

Firefox can't load websites but other browsers can

Disable Firefox Sync

Multi-Hop - Encrypt your data twice for enhanced security while using Mozilla VPN

Browsing history in Firefox - View the websites you have visited

What is the Mozilla VPN kill switch?

Connecting to unsecured networks while using Mozilla VPN

How to let Firefox use the internet on your Windows computer

Server Not Found - Troubleshoot connection problems

Joining public WiFi while on Mozilla VPN

How to resolve weak crypto error messages on Firefox

Using a Primary Password with Sync

Fritz!box isn't working when Mozilla VPN is on

Exclude applications from Mozilla VPN protection

Search your browsing history in Firefox for iOS

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