NEW
You can now run more than one service at a time
with Firefox SocialAPI, allowing you to receive notifications, chat and
more from multiple integrated services
CHANGED
Enabled TLS 1.1 (RFC 4346) and TLS 1.2 (RFC 5246) by default
CHANGED
Added support for SPDY 3.1 protocol
DEVELOPER
Ability to reset style sheets using 'all:unset'
DEVELOPER
You can now choose to deobfuscate javascript in the debugger (see 762761)
DEVELOPER
Added support for scrolled fieldsets (see 261037)
DEVELOPER
Implemented allow-popups directive for iframe sandbox, enabling increased security (see 766282)
DEVELOPER
CSS cursor keywords -moz-grab and -moz-grabbing have been unprefixed (see 880672)
DEVELOPER
Added support for ES6 generators in SpiderMonkey (see blog post)
DEVELOPER
Implemented support for mathematical function Math.hypot() in ES6 (see 896264)
HTML5
Dashed line support on Canvas (see 768067)
FIXED
Get Azure/Skia content rendering working on Linux (see 740200)
FIXED
- +/- sve poruke
- ravni prikaz
- starije poruke gore
... meni ova verzija crasha skroz, bar 10 puta u 2 sata korištenja u multi tab modu. 
pozdrav,imam problema sa ovom verzijom firefoxa,od kada sam napravio update na 27 svako 5-6 sekundi mi se freeza odnosno jednostavno zaledi na par sekundi da je to neizdrzivo,neznam mozda je problem i do windowsa jer mi je se to pocelo dogadjati kada sam napravio svjezi update windowsa,pa ako netko ima rjesenje za to?
pozdrav,imam problema sa ovom verzijom firefoxa,od kada sam napravio update na 27 svako 5-6 sekundi mi se freeza odnosno jednostavno zaledi na par sekundi da je to neizdrzivo,neznam mozda je problem i do windowsa jer mi je se to pocelo dogadjati kada sam napravio svjezi update windowsa,pa ako netko ima rjesenje za to?
Probaj 27.0.1
Probaj 27.0.1
probao ne pomaze,napravio system restore prije updatea i isti problem