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Firefox Developer Edition (MSIX)

by Mozilla Corporationv160.0.1.0

Last updated

The Firefox release channel below Beta and above Nightly. Get the latest features, fast performance, and the development tools you need to build for the open web using Firefox Browser Developer Edition.

Visit homepage

Install with winget

$ winget install --id Mozilla.Firefox.DeveloperEdition.MSIX --exact --version 160.0.1.0

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for Firefox Developer Edition (MSIX)

Firefox Developer Edition (MSIX) uses MSIX. The silent install switches are (no switches needed).

One-line silent install (x64)
Add-AppxPackage -Path .\Firefox%20Setup%20160.0b1.msix

See the full silent install reference for Firefox Developer Edition (MSIX) →

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Installers · v160.0.1.0

ArchitectureTypeScopeInstallDownload
x86MSIX-Direct
x64MSIX-Direct
arm64MSIX-Direct

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

25 known CVEs via NVD

  • critical9.8Patched in wingetCVE-2026-106016affects before 157.0.1Oct 6, 2026

    Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158.

    Vendor advisory
  • medium4.3Patched in wingetCVE-2026-96869affects before 140.17.0, 153.4.0, 157.0.0Sep 29, 2026

    Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Vendor advisory
  • high8.8Patched in wingetCVE-2026-100832affects before 115.42.0, 140.17.0, 153.4.0Sep 29, 2026

    Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Thunderbird 153.4, Firefox ESR 115.42, and Firefox ESR 140.17.

    Vendor advisory
  • high8.8Patched in wingetCVE-2026-100820affects before 140.17.0, 153.4.0, 157.0.0Sep 29, 2026

    Privilege escalation in the Address Bar component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Vendor advisory
  • critical9.6Patched in wingetCVE-2026-100819affects before 115.42.0, 140.17.0, 153.4.0, 157.0.0Sep 29, 2026

    Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

    Vendor advisory
  • critical9.6Patched in wingetCVE-2026-100818affects before 140.17.0, 153.4.0, 157.0.0Sep 29, 2026

    Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

    Vendor advisory
  • medium5.4Patched in wingetCVE-2026-100817affects before 157.0.0Sep 29, 2026

    Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

    Vendor advisory
  • high8.1Patched in wingetCVE-2026-100816affects before 153.4.0, 157.0.0Sep 29, 2026

    Site isolation issue in the DOM: Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

    Vendor advisory
Showing 8 of 25. Source: NVD, updated 4h ago. Patch status is best-effort: NVD's fix version is compared against the latest version in winget, but the two version formats don't always align. Confirm with the vendor advisory before treating any specific build as safe.

See a CVE that affects your fleet? Push the patched version to Intune in one click with Pckgr - automated patching is the only way to keep up.

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  • Mozilla Firefox (en-US)Mozilla
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More from Mozilla Corporation or browse gecko, media-player, mediaplayer.

Frequently asked questions

How do I install Firefox Developer Edition (MSIX) on Windows?
Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id Mozilla.Firefox.DeveloperEdition.MSIX --exact --version 160.0.1.0. winget downloads the installer from Mozilla Corporation and runs it. Requires Windows 10 (1809+) or Windows 11.
How do I install Firefox Developer Edition (MSIX) silently for unattended deployment?
Add --silent and accept the agreements upfront: winget install --id Mozilla.Firefox.DeveloperEdition.MSIX --exact 160.0.1.0 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.
What are the silent install switches for Firefox Developer Edition (MSIX)?
Firefox Developer Edition (MSIX) uses MSIX. MSIX packages install silently by default - no switches are needed (Add-AppxPackage -Path .\Firefox%20Setup%20160.0b1.msix).
How do I uninstall Firefox Developer Edition (MSIX) via winget?
Run: winget uninstall --id Mozilla.Firefox.DeveloperEdition.MSIX --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from Firefox Developer Edition (MSIX)'s Apps & Features entry.
Is Firefox Developer Edition (MSIX) free?
Firefox Developer Edition (MSIX) is distributed under MPL-2.0. Refer to the publisher (https://www.mozilla.org/firefox/developer/) for the full license terms - Wingetly itself does not charge for installation.
Does Firefox Developer Edition (MSIX) work on Windows 10?
Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls Firefox Developer Edition (MSIX) directly from the publisher.
How do I keep Firefox Developer Edition (MSIX) up to date?
Run winget upgrade --id Mozilla.Firefox.DeveloperEdition.MSIX --exact, or winget upgrade --all to update everything winget tracks. We index 10 versions of Firefox Developer Edition (MSIX) from microsoft/winget-pkgs.

Recent versions

  • 160.0.1.0latest
  • 159.0.5.0
  • 159.0.4.0
  • 159.0.3.0
  • 159.0.2.0
  • 159.0.1.0
  • 158.0.5.0
  • 158.0.4.0
  • 158.0.3.0
  • 158.0.2.0