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Re:The Story of Firefox OS by cpeterso on Friday March 03, 2017 @12:28PM (#13784435)
WhatsApp was the big missing app for Firefox OS. In Mozilla's target markets, WhatsApp was huge but the company didn't want to invest any engineering resources to support Firefox OS, understandably. Firefox OS was an unproven OS with no market share and no J2ME support.

In response, Mozilla Research started a "j2me.js" project to try running the WhatsApp J2ME app in JavaScript, sharing some code with the Shumway project to run Flash content. If that worked well enough, maybe WhatsApp would become interested. It did actually kinda work, but the project did not proceed for a number of reasons. Also, j2me.js was renamed "PluotSorbet", due to trademark concerns:

https://github.com/mozilla/pluotsorbet

Re:The Story of Firefox OS by xicoloco on Friday March 03, 2017 @11:05PM (#13789177)
WhatsApp was the only reason I didn't buy a Firefox OS phone here in Brazil. You need to have WhatsApp to get laid.
Re:The Story of Firefox OS by IshKebab on Friday March 03, 2017 @04:57PM (#13787125)
Wait... WhatsApp has a J2ME app? Like... a Midlet? From the 90s? For real?
Re:The Story of Firefox OS by Drdrdrq on Saturday March 04, 2017 @03:37PM (#13792822)
I read somewhere that supporting "ancient" mobiles via j2me was the reason WhatsApp got the advantage over other chat apps. Yes, they (did) put a lot of effort in supporting j2me phones.

EDIT: found source: http://blog.textit.in/your-path-to-a-$16b-exit-build-a-j2me-...

Re:The Story of Firefox OS by tim333 on Friday March 03, 2017 @06:16PM (#13787828)
Re:The Story of Firefox OS by pjmlp on Saturday March 04, 2017 @03:48AM (#13790015)
Not from the 90s, on many countries feature phones are still a thing, and they do run J2ME.
Re:The Story of Firefox OS by digi_owl on Friday March 03, 2017 @12:58PM (#13784689)
As best i understand, Whatsapp's support for anything but iOS is "poor" to put it nicely.
Re:The Story of Firefox OS by 627467 on Friday March 03, 2017 @03:30PM (#13786171)
bubble-vision. Whatsapp was pretty much messaging standard in South America, non-UK Europe, Russia and non-China SE Asia and I bet those were not majority iOS markets then nor now.
Re:The Story of Firefox OS by Razengan on Friday March 03, 2017 @02:20PM (#13785420)
You mean iPhone, because there's no iPad version at all.
Re:The Story of Firefox OS by mwfunk on Friday March 03, 2017 @08:58PM (#13788672)
Actually, WhatsApp runs on Symbian and Series 40. Many, possibly most, people who use WhatsApp run it on devices that arguably aren't even smartphones.
Re:The Story of Firefox OS by eitland on Friday March 03, 2017 @01:27PM (#13784894)
Works really well on my Android.
Re:The Story of Firefox OS by benmward on Friday March 03, 2017 @07:03PM (#13788131)
Same here!
Re:The Story of Firefox OS by digi_owl on Saturday March 04, 2017 @09:48AM (#13791092)
Mea culpa, got it confused with a certain other messaging app...