Mozilla tests a true stealth mode for Firefox

A new tool in prebeta is designed to block browser tracking across sites

Firefox's experimental anti-tracking tool, pictured Aug. 14, 2015.

Firefox's experimental anti-tracking tool, pictured Aug. 14, 2015.

Mozilla wants to make private browsing truly private.

The company is testing enhancements to private browsing in Firefox designed to block website elements that could be used by third parties to track browsing behavior across sites. Most major browsers, Firefox included, have a "Do Not Track" option, though many companies do not honor it.

Mozilla's experimental tool is designed to block outside parties like ad networks or analytics companies from tracking users through cookies and browser fingerprinting.

It's available in the Firefox Developer Edition on Windows, Mac and Linux, and Firefox Aurora on Android, Mozilla said Friday.

The tool is in prebeta, although it might be incorporated into future versions of Firefox's main browser.

The tool might cause some data-hungry websites to not load properly, Mozilla said. Users can unblock specific websites if they wish.

The enhancements also better identify unsafe browser add-ons that could install malware or collect user information.

"We've worked with developers and created a process that attempts to verify that add-ons installed in Firefox meet the guidelines and criteria we've developed to ensure they're safer for you," Mozilla said in a blog post.

Web tracking provides fuel to the lucrative business of targeted ads. A recent report showed that the usage of ad-blocking software is on the rise, costing publishers billions of dollars.

Other browser extensions designed to block tracking and targeted ads include Ghostery and AdBlock Plus.

The Electronic Frontier Foundation, meanwhile, is trying to develop a new standard for the "Do Not Track" browser setting to make it more effective.

Zach Miners covers social networking, search and general technology news for IDG News Service. Follow Zach on Twitter at @zachminers. Zach's e-mail address is zach_miners@idg.com

Join the PC World newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags Internet-based applications and servicessecurityinternetmalwareprivacymozilla

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Zach Miners

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?