Mozilla Firefox
Mozilla Foundation and its contributors; Mozilla Corporation • Web Browser
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The internet is full of trackers and invasive advertisements. Mozilla Firefox offers a powerful, privacy-focused alternative to corporate-backed browsers, putting user control first.
Mozilla, the non-profit organization behind this open-source web browser, has consistently championed a free and open web. This commitment results in a robust browsing experience. It is both fast and highly customizable. The powerful Gecko engine is utilized for rendering web pages.
With the latest version, users gain immediate access to critical bug fixes and performance enhancements. Getting the Firefox download ensures you have the most current security and feature set available for your desktop or mobile device.
Mozilla Firefox Pro Tips
Enabling Global Privacy Control (GPC) Header
- Type about:config into the address bar and press Enter.
- Click Accept the Risk and Continue on the warning page.
- In the search box, type privacy.globalprivacycontrol.enabled.
- Click the Toggle button (double-arrow icon) to change the value from false to true.
Why: This advanced setting explicitly sends a Global Privacy Control signal with every request. It informs websites of your preference not to have your personal data sold or shared, enhancing your overall privacy protection .
Customizing the Tab Bar Density
- Right-click on the toolbar and select Customize Toolbar.
- Look for the Density option at the bottom of the customization panel.
- Select Compact to reduce the vertical space used by the tab bar and toolbar elements.
Why: Power users often prefer the Compact density setting. This change maximizes screen real estate for viewing web content, which is especially useful on smaller laptop displays .
Download Mozilla Firefox
Size – 82.27 MB
Windows
Download Mozilla Firefox for Windows – x64
Download Mozilla Firefox for Windows – x86
Download Mozilla Firefox for Windows – Portable
Linux
Download Mozilla Firefox for Linux
Mac
Download Mozilla Firefox for Mac
Android
Download Mozilla Firefox from Google Play Store
iOS
Download Mozilla Firefox from Apple Store
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Latest Updates in New Version
- Fixed compatibility problems with websites that use the new Compression Dictionaries technology, such as ChatGPT, by temporarily disabling the feature.
- Fixed an issue where an unnecessary empty directory was created on Linux systems.
- Fixed an issue where time formats could cause certain websites to display incorrectly.
For complete changelog, visit the official release notes.
Hardware Requirements
Minimum
- OS: Windows 10 or later (for latest standard release)
Recommended
- OS: Windows 10 or later
- Processor: 1 gigahertz (GHz) or faster compatible processor or SoC
- RAM: 2GB of RAM (for 64-bit version)
- Disk Space: 500MB of hard drive space
Tech Specs
| Software Name | Mozilla Firefox |
|---|---|
| Version | 147.0.3 |
| License | Free (MPL 2.0) |
| File Size | 82.27 MB |
| OS Support | Windows 10/11, macOS Sierra or later, Linux (64-bit), Android, iOS |
| Language | 97 languages (multi-language) |
| Developer | Mozilla Foundation and its contributors; Mozilla Corporation |
| Homepage | https://www.mozilla.org/en-US/firefox/ |
| Changelogurl | https://www.mozilla.org/en-US/firefox/147.0.1/releasenotes/ |
| Last Updated | January 2026 |
Strengths & Weaknesses
| Pros | Cons |
|---|---|
| Strong focus on user privacy with built-in tracker and fingerprint blocking. | May use more memory than some lightweight competitors. |
| Open-source development model ensures transparency and community oversight. | Some niche web applications are occasionally optimized primarily for Chromium-based browsers. |
| Highly customizable interface and extensive add-ons ecosystem. | |
| Total Cookie Protection isolates cookies to prevent cross-site tracking. |
Mozilla Firefox Features
- Enhanced Tracking Protection (ETP): This core feature automatically blocks a wide range of common web trackers, including social media trackers, crypto-miners, and fingerprinters, without requiring user configuration.
- Total Cookie Protection: Cookies are confined to the site that created them. This prevents cross-site tracking by isolating cookies, ensuring your browsing history on one site cannot be used to track you on another.
- Global Privacy Control (GPC): Users can enable a setting to send a GPC request header. This signals to websites that the user does not consent to the selling or sharing of their personal information with third parties .
- Integrated Password Manager: A built-in, free password manager securely stores and syncs your login credentials across all your devices. Seamlessly access passwords, bookmarks, and more.
- Copy Link Without Site Tracking: A context menu option allows users to copy a URL while automatically stripping non-essential query parameters. This removes common tracking elements from the link .
- Customizable Interface: The browser allows extensive customization of the toolbar and appearance. Users can drag and drop features in and out of the toolbar for easy access and apply custom themes.
Frequently Asked Questions
Is Firefox a free and open-source web browser?
Yes, Firefox is completely free to download and use. It is also open-source, developed by the non-profit Mozilla Foundation under the MPL 2.0 license.
How do I enable the Global Privacy Control feature?
You can enable the Global Privacy Control header by navigating to Settings > Privacy & Security and enabling the corresponding option .
What operating systems does Firefox support?
Firefox supports Windows 10 and later, macOS Sierra and later, Linux (64-bit), Android, and iOS.
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