Firefox is testing out a significant privacy upgrade

Representational image depecting cybersecurity protection
(Image credit: Shutterstock)

Firefox is set to join the growing number of web browsers that are adding a “do not sell my personal data” signal referred to as global privacy control (GPC).

GPC is implemented as a browser setting that sends a signal to notify websites of the visitor’s privacy preferences, including whether they want their personal information to be sold or shared.

“At this moment, GPC is a prerelease feature available for experimental use in Firefox Nightly. Once turned on, it sends a signal to the websites users visit telling them that the user doesn’t want to be tracked and doesn’t want their data to be sold,” explained Mozilla.

TechRadar needs you!

We're looking at how our readers use VPNs with streaming sites like Netflix so we can improve our content and offer better advice. This survey won't take more than 60 seconds of your time, and we'd hugely appreciate if you'd share your experiences with us.

>> Click here to start the survey in a new window <<

GPC is getting traction both in California and in Colorado, according to Mozilla, with California insisting that companies are obligated to honor the signal under the state’s consumer privacy law.

GDPR Part Deux

GPC is a collaborative effort by privacy-focused organizations and advocates, including the Electronic Frontier Foundation (EFF) and Consumer Reports. 

It is often touted as a successor to the “Do Not Track” signal, which couldn’t get enough momentum behind it to force companies to honour it. GPC, however, has already found takers with US states such as California mandating adherence.

Mozilla’s CTO Eric Rescorla told the Washington Post that Firefox didn’t adopt the signal right away, to see what sort of impact it would have, to avoid making privacy promises that don’t hold water.

GPC is already available in several other web browsers such as Brave, and privacy-centric browser add-ons including Disconnect and DuckDuckGo. However, Google Chrome, which has the largest market share, is conspicuous by its absence from the list of GPC wielding browsers. 

If you want to keep your online activities to yourself, browse the internet through a proxy service or better still via a VPN service.

Mayank Sharma

With almost two decades of writing and reporting on Linux, Mayank Sharma would like everyone to think he’s TechRadar Pro’s expert on the topic. Of course, he’s just as interested in other computing topics, particularly cybersecurity, cloud, containers, and coding.

Read more
Fingerprint
Profit over privacy? Google gives advertisers more personal info in major ‘fingerprinting’ U-turn
Browser
The future of mobile browsers: time for a new model?
Conceptual image with a bunch of floating eyeballs in different sizes overlooking a red computer, could symbolize ideas around malware and computer viruses
Accept all or bust: how cookie walls are creating a two-tier internet
Abstract illustration of a young woman looking at a smartphone, as large eyes peek through from her hair
Want to hit restart on your online presence? Here's 5 tools you need to stay truly private online
Young woman holds a smartphone with a beam of light obscuring her eyes
Privacy powerhouses: 5 apps to take your online security to the next level
Woman using credit card whilst sitting at a desk with a laptop and mobile phone in view
Best web browser of 2025
Latest in Security
Data leak
Hacked Tata Technologies data leaked by ransomware gang
China
Chinese hackers targeting Juniper Networks routers, so patch now
Google Chrome dark mode
Google updates Chrome extension rules to ban affiliate link injection without user action or benefit
Abstract image of robots working in an office environment including creating blueprint of robot arm, making a phone call, and typing on a keyboard
This worrying botnet targets unsecure TP-Link routers - thousands of devices already hacked
Avast cybersecurity
UK cybersecurity sector could be worth £13bn, research shows
An option to add Ambient Music buttons to the iOS 18.4 Control Center.
Apple fixes dangerous zero-day used in attacks against iPhones and iPads
Latest in News
UK Prime Minister Sir Kier Starmer
UK PM says AI should soon replace civil servants
Eight Samsung TVs mounted to the wall showing different basketball games
Samsung is offering you 8 new TVs in one bundle for March Madness, in case you want to watch all games at once like a Bond villain’s lair
The Steam Logo on a mobile phone in front of a wall of games.
Today’s Steam Spring Sale features my absolute favorite game of all time - here's when the sale starts and all the key info
Apple iPhone 16 Pro Max REVIEW
The latest iPhone 17 Pro Max leak may have given us another look at its upcoming redesign
Half-Life running on a smartwatch
This Redditor installed a game engine on their smartwatch, and now it runs Doom, Quake, and Half-Life
Samsung Galaxy Z Fold 6
The Samsung Galaxy Z Fold 7 could be in line for a Galaxy S25 Ultra-level camera upgrade