Mozilla Firefox 17.0 was released today and it provides the first stable implementation of their Social API along with the Facebook Messenger.

Social API and support for the Facebook Messenger are the big ticket items for Firefox 17 along with click-to-play block-listing for preventing vulnerable plug-ins from executing without the user's consent. There's also an updated Awesome Bar, SVG FillPaint and StrokePaint have been implemented, Maps and Sets improvements in JavaScript, developer improvements, a SandBox attribute for iframes, over twenty performance improvements, and many fixes.

More details on Firefox 17.0 for all major platforms can be found out from the open-source web browser's release notes.

Meanwhile the Norwegians released today Opera 12.11 to provide security and stability improvements to their multi-platform web-browser.