Firefox 31 Release

On July 22, a stable version of Firefox 31 was released for desktops and mobile devices based on Android.

Key changes:
- a new system for blocking the download of files containing malware using the Google Safe Browsing API ;
- for the Windows platform, built-in ogg and pdf handlers have been added (can be overridden);
- fixed a number of critical vulnerabilities ;
- when you open a new tab, a search field is now displayed (by default, Google, you can change);

- Added new features ECMAScript 6;
- Support for Web Video Text Tracks is now enabled by default;
- improveddeveloper tools;
- support for variables in css blocks with the prefix "-" (previously proposed "var-");
- Added support for the Prefer: Safe http header to support parental controls.

Changes for developers .
News on the Mozilla forum (full list of changes) .

Download links: for desktops , for mobile devices .