Feeds

Firefox 'new tab' feature exposes users' secured info: Fix promised

Unlucky version 13 not ideal, Mozilla admits

The essential guide to IT transformation

Privacy-conscious users have sounded the alarm after it emerged the "New Tab" thumbnail feature in Firefox 13 is "taking snapshots of the user's HTTPS session content".

Reg reader Chris discovered the feature after opening a new tab only to be "greeted by my earlier online banking and webmail sessions complete with account numbers, balances, subject lines etc.

"This content is behind a secure login for a reason," Chris added.

In response to queries on the matter prompted by Chris's experience, Mozilla acknowledged that the behaviour was undesirable and promised a patch. In the meantime, the browser and email client firm points privacy-conscious users towards various workarounds, as a statement (below) explains.

We are aware of the concern and have a fix that will be released in a future version of Firefox. Mozilla remains resolute in its commitment to privacy and user control. The new tab thumbnail feature within Firefox does not  transmit nor store personal information outside the user's direct control.

The new tab thumbnails are based on  users' browsing history. All information is contained within the browser and can be deleted at any time. Users can also switch back to using blank new tab screens by clicking the square icon in the top right corner of the browser. That will change the default preference to show a blank page, rather than the most visited websites when a new tab is opened.

Users who share their computer or use Firefox on a public computer should follow best practices for protecting their privacy by utilizing the built-in privacy tools in in Firefox, such as Private Browsing Mode.

Firefox 13 was released on 5 June, adding new features including updated new tab and home tab pages. The updated new tab page feature is broadly akin to the Speed Dial feature already present in other browsers and displays cached copies of a user's most visited websites. ®

Next gen security for virtualised datacentres

More from The Register

next story
e-Borders fiasco: Brits stung for £224m after US IT giant sues UK govt
Defeat to Raytheon branded 'catastrophic result'
Snowden on NSA's MonsterMind TERROR: It may trigger cyberwar
Plus: Syria's internet going down? That was a US cock-up
Who needs hackers? 'Password1' opens a third of all biz doors
GPU-powered pen test yields more bad news about defences and passwords
Think crypto hides you from spooks on Facebook? THINK AGAIN
Traffic fingerprints reveal all, say boffins
Microsoft cries UNINSTALL in the wake of Blue Screens of Death™
Cache crash causes contained choloric calamity
Germany 'accidentally' snooped on John Kerry and Hillary Clinton
Dragnet surveillance picks up EVERYTHING, USA, m'kay?
prev story

Whitepapers

5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.