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Firefox

Version 148.0.2  ·  Updated: April 2, 2026
Open Source WindowsmacOSLinuxAndroidiOS ★ 3.8 (728 ratings)

Open-source web browser by Mozilla offering fast performance, privacy protection, and extensive customization through add-ons.

A. Lynch
A. Lynch
Software Analyst
LinkedIn ↗

Firefox — Key Facts

Latest Version
148.0.2
Category
Browsers
Price
Free to download
Official Site
www.mozilla.org
User Rating
★ 3.8 / 5 (728 ratings)

Firefox Screenshots

About Firefox

Firefox is a widely-used open-source web browser developed and maintained by Mozilla, a community-driven organization founded in 2002. The application provides users with a fast, reliable browsing experience powered by the Gecko engine, Mozilla's own rendering engine that competes directly with Chromium-based alternatives. Unlike many modern browsers that rely on Chromium technology, Firefox maintains its independent engine, ensuring continued innovation and freedom from corporate browser monopolies. This independence allows the project to prioritize user interests over advertising profit, embodying Mozilla's core principle: "The internet is for people, not profit."

The application delivers exceptional performance across diverse web content, from simple pages to complex multimedia sites. Firefox free download options are available across Windows, Linux, and macOS, making it accessible to users regardless of their operating system. The browser's intuitive interface combined with powerful functionality provides both novice and advanced users with an effective tool for web browsing. Users can extend the application's capabilities through thousands of community-created add-ons and extensions, allowing customization tailored to individual preferences. The interface design prioritizes usability without unnecessary complexity, distinguishing it from competing solutions. Free and Open Source attributes ensure transparency and community-driven development.

Security and privacy features form another cornerstone of Firefox's design philosophy. The application includes built-in tracking protection, secure password management, and regular security updates delivered through Mozilla's continuous development cycle. Performance optimization receives constant attention, with each update bringing improvements to speed and resource efficiency. The browser's adherence to web standards ensures compatibility with modern websites while maintaining respect for user privacy. Explore Firefox within Browsers for comprehensive browser comparisons, or visit Free resources for additional open-source tools.

Firefox is a open source browsers available for Windows, macOS, Linux, Android, iOS. Browse more free software or open source programs.

Frequently Asked Questions

Is Firefox truly free to download and use?
Yes. Firefox is completely free and open-source software. No payment is required for downloading or using the browser. The application is developed by Mozilla, a non-profit organization, and funded through partnerships rather than user fees. The source code remains publicly available for inspection and modification by developers worldwide.
Is Firefox safe to download from official sources?
Firefox is safe when downloaded from Mozilla's official website. The application undergoes regular security audits and receives frequent security updates. Mozilla's open-source model allows independent security researchers to review code, identifying and fixing vulnerabilities quickly. The browser includes built-in security features such as malware protection and phishing detection.
What are Firefox's main features and capabilities?
Firefox offers numerous features including the independent Gecko rendering engine, customizable interface, privacy controls, tracking protection, password management, and extensive add-on support. The browser supports modern web standards, delivers fast performance, and provides cross-platform compatibility. Users can synchronize data across devices, access reading lists, manage bookmarks, and customize the toolbar according to preferences.
What are some alternatives to Firefox as a web browser?
Popular browser alternatives include Google Chrome, Microsoft Edge, Safari, Opera, and Brave. Chrome dominates market share but relies on Chromium technology. Edge offers Windows integration, Safari provides macOS optimization, and Brave emphasizes privacy with built-in ad blocking. Each browser serves different user priorities regarding performance, privacy, or ecosystem integration preferences.
A. Lynch
Reviewed by A. Lynch
Software Analyst · PowerHypnosis Free App Hub
A. Lynch is a software analyst and writer covering free and open-source software for Windows, Mac and Linux. He has been reviewing software tools since 2010.
View LinkedIn profile ↗
Program Details
Version148.0.2
LicenseOpen Source
PlatformsWindows, macOS, Linux, Android, iOS
Developerwww.mozilla.org
UpdatedApril 2, 2026
CategoryBrowsers
User Rating
3.8
728 ratings
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