9 August 2013

Security and feature enhancements for Firefox desktop and Android versions

On 6 August 2013, Mozilla issued a number of security, privacy and functionality improvements for its popular Firefox browser.

The release (23) includes fixes for 13 security issues including 4 items it lists as critical.

It includes new security features such as Mixed Content Blocking, designed to improve the handling of secure (https) and unsecure (http) elements in web pages, as well other changes to security, performance and design elements of the browser.

Mozilla has also released updates for its Android mobile browser which includes a variety of security, feature and performance improvements. Check the Google Play store for the latest version.

Keeping your software up-to-date is one of the most effective things you can do to improve your safety, security and privacy online. You should update your software as soon as possible.

How to update Firefox

By default Firefox should automatically check for and install updates.

You can manually check the version of Firefox you’re using, and check for updates by going to:

Help > About Firefox

A pop up window should show Firefox checking for updates (as well as the version number).

More information

Mozilla’s release notes for the Firefox mobile browser are available on its website.

How to set automatic updates on your computer.

The information provided here is of a general nature. Everyone's circumstances are different. If you require specific advice you should contact your local technical support provider.


Thank you to those subscribers who have provided feedback to our Alerts and Newsletters. We are very interested in your feedback and where possible take on board your suggestions or requests.


This information has been prepared by Enex TestLab for the Department of Broadband, Communications and the Digital Economy ('the Department'). It was accurate and up to date at the time of publishing.

This information is general information only and is intended for use by private individuals and small to medium sized businesses. If you are concerned about a specific cyber security issue you should seek professional advice.

The Commonwealth, Enex TestLab, and all other persons associated with this advisory accept no liability for any damage, loss or expense incurred as a result of the provision of this information, whether by way of negligence or otherwise.

Nothing in this information (including the listing of a person or organisation or links to other web sites) should be taken as an endorsement of a particular product or service.

Please note that third party views or recommendations included in this information do not reflect the views of the Commonwealth, or indicate its commitment to a particular course of action. The Commonwealth also cannot verify the accuracy of any third party material included in this information.


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