How Firefox Renders Web Components
A deep dive into the internals of how Firefox renders web components.
Guides
In-depth walkthroughs of how the web platform actually works under the hood — traced through real engine source, not just the specs. Written for developers who want to understand the machinery, not skim it.
Drafts
Shared for review — unlisted & noindex; URLs may change before publishing.
Set up your dev environment
Pick your platforms and your tools, and this page assembles the install steps in the order that actually works — with a check after every one, and troubleshooting keyed to the error text you are looking at.