Firefox Promises Privacy Patch Against Tab Spying

Shared PC warning: Firefox 13 browser records and stores a users most-visited pages, including sensitive content otherwise protected by HTTPS.

When Firefox version 13 debuted earlier this month, it included a new tab-restoration feature--but at what privacy cost?
When opening a new tab, users are now presented with their most visited pages, according to Mozillas
Firefox 13 release notes
.
But as one Firefox user discovered, that tab-restoration feature was also taking snapshots of the users HTTPS session content,
reported

The Register
, after one of its readers opened a new tab and was greeted by my earlier online banking and webmail sessions complete with account numbers, balances, subject lines, etc.
While other browsers have long included the ability to see a list of most visited pages, they dont restore data contained on HTTPS pages. This content is behind a secure login for a reason, noted the
Register
reader, and the ability of anyone who subsequently opened Firefox to see all of that information would constitute an obvious breach of the users privacy, as well as data security. Furthermore, for users of Firefox 13 on shared computers, the information could potentially be stored and made available to subsequent users, without the original user being aware that the data had ever been captured.
[ Internet Explorer gets a high five from privacy experts, but
Microsoft IE10 Privacy Settings Draw Advertiser Fire
. ]
Mozilla acknowledged the issue and said its working on a fix. We are aware of the concern and have a fix that will be released in a future version of Firefox, said Mozilla spokeswoman Valerie Ponell via email. 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 users direct control.
In the meantime, how can users disable the tab-restoration feature? For starters, Ponell noted that the feature is based solely on users browsing history, and that the stored information can be deleted by users via the preferences screen. Users can also switch back to using blank new tab screens by clicking the square icon in the top right corner of the browser, she said. That will change the default preference to show a blank page, rather than the most visited websites when a new tab is opened.
But she advised anyone who uses Firefox 13 on a shared computer to use the built-in privacy tools in Firefox, such as Private Browsing Mode, which will also prevent a copy of the session tab from being recorded.
Firefox 13, released June 5, also patched seven bugs, four of which were critical. Many Firefox installations are set to automatically update and install the latest version.
While Mozilla may have committed a temporary, local Firefox privacy gaff, the company has been working to proactively address larger questions involving
peoples right to privacy when using the Internet
. In a TED talk earlier this year, Mozilla CEO Gary Kovacs delivered a presentation titled
Tracking the Trackers
, in which he introduced a an experimental browser add-on for Firefox called Collusion, which visually displays
behavioral tracking sites
that are following a user, including sites which the user has never visited.
Collusion was created by Mozilla
Hackasaurus
developer
Atul Varma
to present users with a graph of
which sites were tracking them
, and color-coding ones which the user hadnt explicitly granted permission. Varma told the
TED blog
that he was surprised not just by how many different trackers followed him, but how companies such as Googles DoubleClick and Scorecard Research consistently tracked him across different sites that he visited.
One of the ones that was most surprising to me was VirginAmerica.com. One of the most unusual things about it--on the graph, it appears to make a single request to DoubleClick, which then makes requests to like 20 different data collection companies or something crazy, said Varma. When you watch it in graph form, it looks like ... theres that kind of flower that, when you blow on it, theres all of these wispy things that fly out of it--a dandelion. Its pretty, but its also kind of scary.
Kovacs likewise detailed just how pervasive hed found online behavioral tracking to be, recounting how many sites were following him after just a few minutes browsing one morning. We are not even two bites into breakfast, and there are already nearly 25 sites that are tracking me. I have navigated to a total of four, he said. By the end of the day, meanwhile, he found over 150 sites tracking his personal information by the end of a typical day, almost all of them without my consent, he said. Im being stalked across the Web.
While the Internet is an indispensable tool, the price were being asked to pay for all this connectedness is our privacy, he said. We are being watched, its now time for us to watch the watchers.
Security information and event monitoring technology has been available for years, but the information can be hard to mine. In our
SIEM Success
report, we provide a step-by-step guide to make the most of your SIEM system. (Free registration required.)

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Firefox Promises Privacy Patch Against Tab Spying