Firefox For Android My Open Source Journey 

(none-official) Introduction • Mozilla • Firefox for Android : Fennec • 175M Download • Distribution 

Open Source • A: Open Source Code • B: Open Source Development • We are A+B(little) • Contributor file a bug [Bug 1320605] • Contributors fix a bug [Bug 1116415] • Sometimes we need to fix by ourselves… 

An Open Source Advantage 

Why Open Source • As a company • Get feedback early • Marketing - Google AOSP (Samsung + Sony) vs Microsoft (Dell + HP) • Engineering Brand • Find talented potential developers • Build a community 

Why Open Source • Aa an individual • Work with talented people • Reputation / Resume • No need to apply patches for new release ( If you are a user of the code) • Fun 

Firefox for Android • VCS is mercurial • 4G code • Legacy code • Complex code flow (JS,C++,Java) 

Why I’m here • I need your help • This may help you. • This is fun! 

How to Help • File a Bug • Add a test • Fix a Bug • :snorp (module owner) • :sebastian (module owner) • :grisha (FxA) • :bwu (video) • :jwu (bookmark, UI) • :maliu (tech lead, build) • :nechen (me) • :walkingice (custom tab, PWA) 

How to Play • Solve the Good First Bug • Find the Next Bug • Get Vouched (Level 1 Access) • Have fun! • Become a Peer / Come to Hawaii • Sebastian Kapsari / Jan Henning / Tom Klein 

Players • Product Manager • Program Manager • UX Manager • Developer • Peer • Component Owner • Related Team • Find a mentor! 

Architecture Sync Favicon Reader Mode Panel Toolbar FLC Book- mark Tabs Local- DB Metrics Search Mgr Distribu tion l10n Plugin Setting Theme IME AutoFill JimDB Audio First Run Testing Build Profile Fullscre en 

Architecture SFRP T F BTL M S D l PST I A J A FT BP F Gecko (C++) JS BrowserApp Progressive Web App Custom Tab 

- Let’s chat more at COSCUP! Now the journey begins… 

Resources • Best Getting Start Guide [for git users] • 揙糽瞲ܖ/執懿 • Discussion Channel : IRC • Document : Wiki, ReadTheDocs, MDN, dxr 

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