First Look: Firefox 27

SPDY, social integration and more improved in the latest Firefox version.

Firefox 27
Firefox 27

The latest version of Mozilla's flagship web browser brings several major twists to the table, including improvements in speed, social media integration and security. Here's our quick glance inside.

Firefox 27
SPDY 3.1

Google's SPDY networking protocol is designed to dramatically improve page load times and integrate additional security into the web browsing experience. Support for the latest and greatest version of the protocol should ensure Firefox 27 stays as close as possible to the cutting edge.

Firefox 27
SocialAPI improvements

Mozilla's API for integrating social media features like chat and notifications has been upgraded in Firefox 27, bringing the ability to run multiple services simultaneously.

Firefox 27
Credit: Wikimedia Commons/Joshua Sherurci
TLS 1.1 and 1.2 support

Transport layer security is a crucial part of keeping the web safe, and Firefox 27 now supports the latest versions of the TLS protocol by default. Versions 1.1 and 1.2, introduced in 2006 and 2008, respectively, are the most up-to-date variants of the TLS layer.

Firefox 27
Four critical vulnerabilities

Mozilla has fixed four critical security flaws in Firefox 27. One involved a JavaScript flaw that caused potentially exploitable crashes, while two others involved incorrect handling of certain types of images from websites, leading to a use-after-free and another type of potentially exploitable crash. Finally, various memory safety hazards were also corrected.

Firefox 27
Nine less serious security flaws

A range of other potential security vulnerabilities were also fixed in Firefox 27, including XSLT stylesheet issues, and problems with handling of JavaScript access to Windows objects and NSS tickets. Another fix ended a problem where certain types of applications could be exploited to read the Android system log on some older versions of that operating system.