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Privacy preserving attribution for advertising
Advertising provides critical support for the Web. We’ve been looking to apply privacy preserving advertising technology to the attribution problem, so t
Mozilla Blog
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Visit blog.mozilla.org → RSS feedOn Hacker News Apr 2012 – Sep 2026
Web & Frontend 172Security & Privacy 103Tech Industry & Business 70Software Engineering 66Society, Policy & Culture 47Systems & Performance 28
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Mozilla rolls out DoH to Canadian users of Firefox
CIRA Joins Firefox’s Trusted Recursive Resolver Program In a few weeks, Firefox will start the by-default rollout of DNS over HTTPS (or DoH for short) to
63
Firefox 143 for Android to introduce DoH
All web browsing starts with a DNS query to find the IP address for the desired service or website. For much of the internet’s history, this query is sen
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Firefox rolls out Total Cookie Protection by default to more users
Updated Aug. 28, 2024. Take back your privacy Firefox is rolling out Total Cookie Protection by default to more Firefox users worldwide, making Firefox the
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Firefox getting smarter about third-party cookies
Mozilla has a long running interest in fostering greater transparency, trust and accountability related to privacy and the many cookie-based practices we see today. On Friday, Mozilla released a Firefox ...
66
Removing Old Versions of TLS
In March of 2020, Firefox will remove support for TLS 1.0 and TLS 1.1.
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Firefox Private Browsing mode upgrade
October is one of our favorite months of the year with autumn and Cybersecurity Awareness Month. We’re supporting Cybersecurity Awareness with Private Br
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Phasing Out SHA-1 on the Public Web
An algorithm we’ve depended on for most of the life of the Internet — SHA-1 — is aging, due to both mathematical and technological advances. Digital signatures incorporating the SHA-1 ...
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Encryption is a necessity
Recent news around Apple’s resistance to the US government’s demand to decrypt the iPhone of one of the San Bernardino shooters has brought encryption
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Leaking silhouettes of cross-origin images
This blog post is one of several guest blog posts, where we invite participants of our bug bounty program to write about bugs they've reported to us. This is a ...
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Firefox Personal Data Promise
Tech companies are using the word “privacy” a lot these days. What do they mean when they say it? To one company, privacy means keeping your informatio
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Mozilla Announces Experimental Partnership with ProtonVPN
Mozilla has long played an important role in the online world, and we’re proud of the impact we’ve had. But we want to do even more, and that means exploring ...
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Firefox Roadmap for Flash End-Of-Life
This morning, Adobe announced its roadmap to stop supporting Flash at the end of 2020. Working with Adobe and other browser vendors, Mozilla has prepared a roadmap for Flash support ...
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Protect your privacy and your phone number with Firefox Relay
When you share your personal phone number with anyone outside your circle of family and friends, it essentially gives them permission to call you anytime o
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Requiring secure contexts for all new features
Since Let’s Encrypt launched, secure contexts have become much more mature. We have witnessed the successful restriction of existing, as well as new features to secure contexts. The W3C TAG ...
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Verified cryptography for Firefox 57
Traditionally, software is produced in this way: write some code, maybe do some code review, run unit-tests, and then hope it is correct. Hard experience shows that it is very ...
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Encrypted Client Hello: The Future of ESNI in Firefox
Background Two years ago, we announced experimental support for the privacy-protecting Encrypted Server Name Indication (ESNI) extension in Firefox Nightly. The Server Name Indication (SNI) TLS extension enables server and ...
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Protecting Mozilla’s GitHub Repositories from Malicious Modification
At Mozilla, we’ve been working to ensure our repositories hosted on GitHub are protected from malicious modification. As the recent Gentoo incident demonstrated, such attacks are possible. Mozilla’s original usage ...
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The Bare Minimum You Should Do to Protect Your Family's Data
For a lot of families, technology is the glue that holds everything together. There’s your kid’s Instagram feed you follow to see what theyR
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NextDNS Joins Firefox’s Trusted Recursive Resolver
NextDNS Joins Firefox’s Trusted Recursive Resolver Program Committing to Data Retention and Transparency Requirements that Respect User Privacy Firefox a
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Multi-account containers add-on sync feature
The Multi-Account Containers Add-on will now sync your container configuration and site assignments. Firefox Multi-Account Containers allows users to separate their online identities into different tab types called Containers. Each ...
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Analysis of the Alexa Top 1M sites
Prior to the release of the Mozilla Observatory a year ago, I ran a scan of the Alexa Top 1M websites. Despite being available for years, the usage rates of ...
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Multi-Account Containers Add-on on Mozilla VPN
At Mozilla, online privacy has always been one of our top priorities. Recently we announced Total Cookie Protection on Firefox Focus to combat cross-site t
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DNS-over-HTTPS Policy Requirements for Resolvers
Over the past few months, we’ve been experimenting with DNS-over-HTTPS (DoH), a protocol which uses encryption to protect DNS requests and responses, with the goal of deploying DoH by default ...
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What’s Next in Making Encrypted DNS-over-HTTPS the Default
More than 70,000 users have already chosen on their own to explicitly enable DoH in Firefox Release edition. We are close to releasing DoH in the USA, and we have a few updates to share.
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Is Germany on the brink of banning ad blockers?
Across the internet, users rely on browsers and extensions to shape how they experience the web: to protect their privacy, improve accessibility, block harmful or intrusive content, and take control ...
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Introducing FuzzDB
FuzzDB is an open source database of attack patterns, predictable resource names, regex patterns for identifying interesting server responses, and documentation resources. It's most often used testing the security of ...
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Stopping FTP support in Firefox 90
The File Transfer Protocol (FTP) has long been a convenient file exchange mechanism between computers on a network. While this standard protocol has been supported in all major browsers ...
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Aadhaar isn’t progress – it’s dystopian and dangerous
Mitchell Baker and Ankit Gadgil: India should pause further roll out of Aadhaar until a law protecting individual security is passed.
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Mozilla DNS over HTTPS (DoH) and Trusted Recursive Resolver (TRR) Comment Period
We're crowdsourcing ideas and recommendations to help us enhance the privacy and security benefits of DNS-over-HTTPS (DoH) for users around the world