Networking

The Necko (aka Networking) component is Gecko’s implementation of the web’s networking protocols. Most of the component’s source lives in netwerk directory and this document’s source can be found in netwerk/docs. This page mostly just points to helpful resources for contributing to and understanding Necko. More details can be found on Necko’s wiki. The team can be reached:

• on Matrix: #necko:mozilla.org

• by email: necko@mozilla.com

• or by submitting a Core::Networking bug on bugzilla.mozilla.org

Contributing to Necko

• HTTP Logging
• Submitting actionable networking bugs

Team resources

• New-to-Necko Resources - An Aggregation
• Neqo triage guideline

Testing

• Networking Test Guidelines
• HTTP server for unit tests
• Introduction to Mochitest framework with HTTP/2 and HTTP/3 support

Component/Feature details

• The lifecycle of a HTTP request
• Security and Networking Components
• HTTP Cache
• Http3Session and streams
• DNS over HTTPS (Trusted Recursive Resolver)
• URL parsers
• WebTransport
• Captive portal detection
• Connectivity checking
• Early Hints