• Started as a project, codenamed "Fennec"
• Uses (almost) same technology as Desktop Firefox
• First stable version (v1.0) released in January, 2010
• Initially targeted for multiple platforms (Maemo, Android, WP, PC)
• Now supports only Android, for a-few-reasons (we'll come to that)

Checkout what Fennec stands for:
youtube.com/watch?v=s6yIgG6sw_k

• Maemo gradually became less popular (tier 3) platform
• Microsoft doesn't provide Windows Phone NDK
• Apple doesn't allow non-webkit brosers to app-store
• BlackBerry's OS isn't flexible enough for the development
• Symbian phone's specs are too limited for Fennec to run
• Palm WebOS can run it, but for its rarity there's no support
• Moving with Android native UI, Desktop builds aren't produced

Most platforms without the Firefox Mobile support are targeted with "Firefox Home". Firefox Home for iOS is already available for 2 years — BlackBerry, Symbian may also have it in future.

• Gecko: uses the same rendeing engine
• XPCOM: Cross-platform COM architecture
• UI/UX: (now) based on Android native UI
• Awesomebar: more awesome, with tab-previews
• Sync: browse seamlessley on multiple devices
• Speed: uses the same JavaScript engine as Desktop
• Safety: comes with "Do Not Track" to protect privacy
• Addons: addons need very small tweaks to run, if at all

Did I miss anything? Ok, you tell me!

• Processor: 600MHz ARMv6 or better
• RAM: 256MB or more
• GPU: for H/W accl. in future
• Screen: WVGA800 (800x480)
• OS/Platform: Android 2.2+

Here's a comprehensive list of suppoted phones:
mozilla.org/firefox/mobile/platforms
If your phone runs Android 4.0+, most likely it will smoothly play Firefox Mobile too.

There are several alternative methods to install Firefox on your Android device

• Get Firefox from Google Play
• Download builds from Mozilla Server
• Nightly Builts available from nightly.mozilla.org
• ...and of course you (if you-) can compile from source

Let's install it then — follow the live step-by-step guide...

File bugs for Firefox Mobile: bugzilla.mozilla.org
Discuss with Developers: irc://irc.mozilla.org/#mobile

Get these slides live at: code.debs.io/talks/FirefoxMobile

Fork my GitHub repos @Debloper
Or, follow me on Twitter @Debloper

Thanks!