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You may see a warning that the installer could harm your device when attempting to download Firefox from another browser. Learn about update notifications on Windows that let you know when a brand-new Firefox version is available, even if Firefox is closed. Firefox 78 was the last supported version for Mac OS X 10.9, 10.10 and 10.11.
Firefox updates automatically in most cases, but you can manually check for and install updates if needed. Portions of this content are ©1998–2026 by individual mozilla.org contributors. Firefox and Thunderbird install Mozilla Maintenance Service to allow seamless background updates.
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Answer questions and improve our knowledge base. Grow and share your expertise with others. REDIRECT How to install Firefox on Windows Windows 10 reached EOS (end of support) on October 14, 2025.
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- Learn about update notifications on Windows that let you know when a brand-new Firefox version is available, even if Firefox is closed.
- Firefox version 115 ESR will be the last supported release for Windows 7, 8 and 8.1.
- Portions of this content are ©1998–2026 by individual mozilla.org contributors.
- You may see a warning that the installer could harm your device when attempting to download Firefox from another browser.
Stuck with the “Can not create temp 1xbet ios folder archive” error on 7-Zip when installing Firefox for Windows 10? Firefox desktop should be installed on systems meeting minimum requirements for best performance. Fix the “installation incomplete/corrupt” error in Firefox on Windows by addressing common causes like corrupted files or hardware issues.
On Windows, you can set Firefox to update in the background even when it isn’t running, so you always have the latest version. Firefox version 115 ESR will be the last supported release for macOS 10.12, 10.13 and 10.14 No further security updates will be provided for those systems. This article explains how to download and install Firefox on macOS. Firefox version 115 ESR will be the last supported release for Windows 7, 8 and 8.1.
When installing Firefox on Windows 10, you may see a warning that says you can “only install apps from the Microsoft Store.” This is a Windows… If you need more help, you can always get community support. To learn more, see Download Firefox on Windows from the Microsoft Store. Congratulations, you are done installing Firefox! This article explains how to install Firefox on Windows, either with a simple online installer from Mozilla or from the Microsoft Store. Post a question to our support forums and get answers from our community of experts.
在 Windows 中安装 Firefox
What to do if you spot fake notices claiming to contain an “urgent” or “critical” Firefox update. The custom setup option in the Firefox full, offline installer lets you choose the program folder location and shortcuts. Learn how to find out what Firefox version you are using, to help troubleshoot a problem or just to know if Firefox is up to date. Firefox is safe to install, so choose “install anyway”. Windows 10 may interrupt your Firefox install with a “Microsoft-verified apps” warning. Learn how to update Firefox on Windows, Mac, or Linux.
This article describes how to download and install Firefox on Windows. This article describes how to download and install Firefox on Linux. Firefox automatically updates itself by default, but you can always do a manual update. Learn how to install your favorite Mozilla products and keep them updated. The developer has not yet indicated which accessibility features this app supports.