Download Mozilla Firefox - Improve your browsing experience with Mozilla's open-source and highly acclaimed Firefox. Mozilla Firefox browser is a fast, full-featured Web browser. Mozilla Firefox is a free and open source web browser developed for Windows, OS X and Linux, with a mobile version for Android, by Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox counts over 450 million users around the world. Best Browser for Mac in 2021: Leaving Safari Behind. Though Safari is far from the worst browser out there, Mac users could also do so much better than Apple's default browser. Thunderbird is now part of MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation. Portions of this content are ©1998–2021 by individual contributors. Content available under a Creative Commons license. Contribute to this site. ABOUT MOZILLA Mozilla exists to build the Internet as a public resource accessible to all because we believe open and free is better than closed and controlled. We build products like Firefox to promote choice and transparency and give people more control over their lives online. Learn more at https://www.mozilla.org.
The way to surf the web.
Striking the perfect balance of privacy and useability.
Build up the whole picture
When we do things, we do them well.
Limited Data Collection
We try and take the bare minimum amount of information to keep things running smoothly.
No telemetry
We don't need to know what you do within your browser.
Support for Extensions
Waterfox supports the Chrome Web Store, the Opera Web store and the Firefox Store. The most extension support of any browser!
Fan-tab-u-lous
Everyone likes to use their browser in a specific way.
- Tab above address bar
- Tab below address bar
- Tab at bottom of browser
- Status Bar
Waterfox in the Media
See the waves Waterfox has made
“The Open-Source Waterfox Browser Delivers a Balance of Privacy and Usability for Power Users Such as Developers and Server Admins”
“The young developer behind web browser Waterfox, which boasts 4m downloads, is now hoping to create a viable rival to Google’s ubiquitous search engine by offering users absolute privacy online.”
“Alex Kontos has taken on the internet browser behemoths with the creation of Waterfox.”
“What started out as a teenage hobby in his bedroom is rapidly becoming an influential presence on the internet and a serious rival to the main players.”
Mozilla Mac Os X
“It’s incredibly difficult for new browsers to penetrate the market, but there’s one such browser called Waterfox, which is attempting to gain a foothold into the market by claiming to be the fastest browser in existence by leveraging on the 64-bit architecture of the latest operating systems.”
“In a week where we celebrate the best of the British technology industry, we speak to young developer Alex Kontos about building a successful web browser, a search engine that gives money to charity, Microsoft Edge and more.”
“Alex argues that we need to think hard about the future of the internet.”
Mozilla Machine Learning
Firefox version 78 is the last supported Firefox version for Mac users of OS X 10.9 Mavericks, OS X 10.10 Yosemite and OS X 10.11 El Capitan. These users will be moved to the Firefox Extended Support Release (ESR) channel by an application update. This will provide security updates until the next ESR update in July 2021, after which the affected users will no longer receive security updates.
While Apple does not have a public policy governing security updates for older OS X releases, their ongoing practice has been to support the most recent three releases. The last security update applicable to OS X 10.11 was made available in July 2018. Unsupported operating systems do not receive security updates, have known exploits and can be dangerous to use, which makes it difficult to maintain Firefox on those versions.
Up until July 2021, we will be updating affected users with critical security updates through the Firefox ESR channel to help retain the best possible security. After this, no security updates will be provided.
If you want to keep your Firefox version up to date, you will need to upgrade your operating system to macOS 10.12 or higher. Older versions that are not supported by Apple are unreliable and unsafe to use, which also makes it difficult to maintain Firefox on those versions.