One of the World's Most Popular Web Browsers for Mac

Firefox for Mac

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Firefox for Mac

  -  151 MB  -  Freeware
Free Download

Security Status

Mozilla Firefox for Mac is a free and open-source web browser that prioritizes user privacy and security, enabling users of all ages and technical levels to enjoy streamlined access to a wide variety of online content.

Firefox for Mac Screenshot 1

It offers all of its users access to a large selection of advanced features, including Enhanced Tracking Protection, Total Cookie Protection, DNS over HTTPS, and Fingerprinting protection, to name a few.

Firefox web browser is also known for its customizable interface and compatibility with various add-ons, making it a popular choice for users who value their online privacy and want to protect their personal information.

It also represents a valuable open-source alternative to web browsers that are made by large corporations (such as Google, Microsoft, and Apple).

This app was first released to the public in late 2004 as a spiritual successor to the famous Netscape Navigator. Immediately after its release, it quickly became one of the most popular browsers on the market and a strong competitor to then-dominant Internet Explorer 6.

While it managed to become more popular than Internet Explorer 7, it was quickly surpassed in popularity by Google Chrome.

Today, it ranks as the fourth most popular internet browser on the market, attracting dozens of millions of daily users, great community support, and regular updates from the Mozilla Corporation.

Firefox for Mac Screenshot 2

Key Features
  • Fast and Reliable Browsing – Experience everything that the internet has to offer with this open-source browser platform.
  • Enhanced Tracking Protection – Block known trackers that gather information about user online activity.
  • Advanced Cookie Protection – Prevent websites from tracking your preferences.
  • Built-in VPN – Browse the internet anonymously.
  • DNS over HTTPS – Automatically enhance privacy by encrypting DNS requests over HTTPS.
  • Fingerprinting Protection – Get instant notification when websites try to collect private or browsing habit metadata.
  • Streamlined User Interface – Experience a clean and modern user interface, with extensive options for customization.
  • Fast Page Rendering – Load large pages quickly by ignoring ads and scripts that bog down other browsers.
  • Expand Functionality with Extensions – Browse and install large offerings of 3rd party add-ons.
  • Seamless Sync – Continue browsing with synced bookmarks, passwords, and open tabs on other devices with the Firefox browser.
  • Open-Source Development – Quick adoption of the latest browser technologies and regular security updates.
Installation and Setup

To install this app on any Mac computer, users simply must download the official automated installer from either the official Mozilla website or secure FileHorse servers.

After following a short installation procedure, the app will be deployed on local storage and ready for the first start.

Firefox for Mac Screenshot 3

The first startup will promote the use of customization options - administration of user accounts, selecting the primary search browser engine, installing extensions, and similar tweaks that many modern users require to optimize their daily internet browsing workflow.

How to Use

Firefox offers the same basic functionality as any other modern internet browser app, with the added bonus of being developed in an open-source environment and quickly adopting modern page rendering and security standards that many other browsers lack.

Firefox for Mac Screenshot 4

Users are empowered to browse the web seamlessly and with full control over what private or browser habits data are shared with outside (advertisement, user tracking, and other) platforms.

The app actively scans for online services and prevents them from collecting user data and can even proactively prevent the loading of aggressive ads when downloading content for rendering a web page.

User Interface

This app has a clean and modern user interface, with extensive options for customization via built-in support for theme presets.

Users can personalize their browsers by changing the visual look, installing add-ons, and adjusting large offerings of settings to suit their preferences.

Firefox for Mac Screenshot 5

In addition to the Mac desktop app, the Firefox browser can also be accessed on mobile platforms, with full access to automatic bookmarks and active page syncing between devices.

FAQ

What is Firefox for macOS?
It is a free and open-source web browser that prioritizes user privacy and security.

Is it safe?
100% yes! This app is very well known for its strong privacy and security features, enabling more user security than many other competing solutions.

Alternatives

Google Chrome for Mac – The most popular browser in the world, featuring a large focus on speed and a large library of extensions.

Brave for Mac– A privacy-focused browser that blocks ads and trackers by default.

Safari – A browser developed by Apple that prioritizes user privacy and security, with a focus on seamless integration with Apple's ecosystem.

Opera: Feature-rich browser offering a built-in ad blocker, VPN, and unique tools for faster browsing.

Edge: A modern and efficient browser with excellent compatibility and integrated Microsoft services.

Pricing

Firefox is a 100% free and open-source web browser, making it accessible to users at no cost.

System Requirements

The Mac version of this app is optimized for macOS 10.12 Sierra and newer.

PROS
  • Fast page rendering.
  • Reliable privacy practices.
  • Large library of extensions.
  • Easy to use.
  • Customizable interface.
  • Stable, secure, and regularly updated.
  • Free for use.
CONS
  • None.
Conclusion

Firefox for Mac is a highly secure, reliable, and customizable web browser that prioritizes user privacy and security and offers a large range of advanced features and a user-friendly service.

Today, it represents the fourth most popular internet browser in the world and is regarded as the strongest open-source opposition to the closed browser developed by large corporations.

Also Available: Download Firefox for Windows

Download Firefox for Mac Latest Version

  • Firefox 135.0.1 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Firefox 135.0.1 Screenshot 1
  • Firefox 135.0.1 Screenshot 2
  • Firefox 135.0.1 Screenshot 3
  • Firefox 135.0.1 Screenshot 4
  • Firefox 135.0.1 Screenshot 5

What's new in this version:

New:
- Firefox Translations now supports more languages than ever! Pages in Simplified Chinese, Japanese, and Korean can now be translated and Russian is now available as a target language for translating into
- The credit card autofill feature is now being gradually rolled out to all users globally
- AI Chatbot access is now being gradually rolled out to all users. To use this optional feature, choose AI Chatbot from the sidebar or from Firefox Labs. Then, complete the provider selection to see the chat interface become available on the sidebar.
- Firefox now enforces certificate transparency, requiring web servers to provide sufficient proof that their certificates were publicly disclosed before they will be trusted. This only affects servers using certificates issued by a certificate authority in Mozilla's Root CA Program.
- Additionally, the CRLite certificate revocation checking mechanism is also being gradually rolled out, substantially improving the performance of these checks.
- Firefox now includes safeguards to prevent sites from abusing the history API by generating excessive history entries, which can make navigating with the back and forward buttons difficult by cluttering the history. This intervention ensures that such entries, unless interacted with by the user, are skipped when using the back and forward buttons.

Fixed:
- Made improvements to the Translations feature which will reduce the likelihood that models will invent new, made-up words under some circumstances

Various security fixes:
- CVE-2025-1009: Use-after-free in XSLT
- CVE-2025-1010: Use-after-free in Custom Highlight
- CVE-2025-1018: Fullscreen notification is not displayed when fullscreen is re-requested
- CVE-2025-1011: A bug in WebAssembly code generation could result in a crash
- CVE-2025-1012: Use-after-free during concurrent delazification
- CVE-2025-1019: Fullscreen notification not properly displayed
- CVE-2025-1013: Potential opening of private browsing tabs in normal browsing windows
- CVE-2025-1014: Certificate length was not properly checked
- CVE-2025-1016: Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 115.20, and Thunderbird 128.7
- CVE-2025-1017: Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7
- CVE-2025-1020: Memory safety bugs fixed in Firefox 135 and Thunderbird 135

Changed:
- The refreshed New Tab layout previously rolled out in Firefox 134 to users in the United States is now being made available in all countries where Stories are available. It features a repositioned logo to prioritize Web Search, Shortcuts, and Recommended Stories at the top. The update also includes changes to the card UI for recommended stories and allows users with larger screens to see up to four columns for better use of space.
- The “Do Not Track” checkbox has been removed from preferences. If you wish to ask websites to respect your privacy, you can use the “Tell websites not to sell or share my data” setting instead. This option is built on top of the Global Privacy Control (GPC).
- The "Copy Without Site Tracking" menu item was renamed to "Copy Clean Link" to help clarify expectations around what the feature does. "Copy Clean Link" is a list based approach to remove known tracking parameters from links. This option can also now be used on plain text links.

Developer:
- A warning is now displayed when content-visibility is used on elements where size containment does not apply
- Introduced a new console command $$$ that allows searching the page, including within shadow roots.
- Enhancements to WebExtension debugging: Workers are now available in the Console panel’s context selector and breakpoints function correctly in content scripts.

Web Platform:
- Added support for a post-quantum key exchange mechanism (mlkem768x25519) for HTTP/3
- The attribute values which indicate the coordinates of PointerEvent may now be fractional values rather than only integers. This allows web apps to handle the events with higher-precision coordinates when the target element is transitioned by CSS and/or the viewport is zoomed.
- The behavior of mouseenter, mouseleave, pointerenter and pointerleave events was changed for improved spec compliance when the last mouseover or pointerover event target is removed
- Added support for the WebAuthn getClientCapabilities() method

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