Browsers & OS
Mozilla Firefox legal documents, explained
We fetch the public Terms and Privacy pages below, write a short briefing in everyday language, and record a change when the text moves.
What the documents say
Privacy Policy
Checked October 26, 2026 · Read the source
Mozilla Firefox prioritizes your privacy by allowing you to control the data you share. They collect some technical data to improve the browser and its features, but much of your information stays on your device. You can manage your data settings at any time and choose how your information is used, including opting out of certain features like search suggestions and sponsored content.
- Mozilla Firefox is designed to give you control over your online privacy.
- Most data collected stays on your device and is not sent to Mozilla unless specified.
- You can customize your data settings and manage features like search suggestions.
- Firefox uses a VPN feature to hide your IP address, but it doesn't make you completely anonymous.
- Technical data is collected to improve the browser's performance and security.
- You can opt out of marketing communications and data sharing at any time.
Terms of Service
Checked October 26, 2026 · Read the source
Mozilla Firefox is a free and open-source web browser that you can install and use under specific terms. You have the right to use, modify, and share the software, but you must follow the open-source licenses. Mozilla can update these terms and may terminate your access to Firefox at any time. You are responsible for how you use Firefox and cannot hold Mozilla liable for any issues that arise from your use.
- Firefox is free to use and open-source, allowing modifications and sharing under certain licenses.
- You need a Mozilla account for some features, which comes with its own terms.
- Mozilla can update the terms and your continued use means you accept the changes.
- You are responsible for your actions while using Firefox and cannot claim Mozilla is liable for any issues.
- Mozilla provides Firefox 'as is' without any warranties or guarantees.