[Package Request]: `Mozilla.Firefox.MSIX.Nightly`

[RokeJulianLockhart]

How can we help?

I would like someone else to build the manifest.

Please read and ensure the following

• The installer meets the above requirements

Please provide the following information

Rationale

1. Confirming that bugs have been remediated is solely feasible with the nightly package.

2. We all know the advantages of MSIXs (and AppXs) over MSIs (and mere executable installers).

3. My brother and I have run the Nightlies as our daily drivers for some years without any trouble (as we do with Edge Canary).

4. Until bugzilla.mozilla.org/show_bug.cgi?id=1980786#c1 has been remediated, the package is unable to update itself, so a server providing automatic updates is a security improvement.

Manifest

Download Page Url: https://ftp.mozilla.org/pub/firefox/nightly/latest-mozilla-central-l10n/#:~:text=File-,firefox%2D143.0a1.multi.win64.installer.msix,-162M
Publisher: Mozilla
Package Name: Mozilla.Firefox.MSIX.Nightly
Description: Firefox is a free and open-source web browser developed by the Mozilla Foundation. It uses the Gecko rendering engine to display web pages, which implements current and anticipated web standards.
Package Version: 143.0a1
Installer Url: https://ftp.mozilla.org/pub/firefox/nightly/latest-mozilla-central-l10n/firefox-143.0a1.multi.win64.installer.msix

blob/d949a84c80339a16b6880f3117f5fe5c2948b1c8/manifests/m/Mozilla/Firefox/MSIX/141.0/Mozilla.Firefox.MSIX.installer.yaml is a useful basis, although its ShortDescription is uselessly nondescript, and its (long) Description is as infeasibly long as it is comprised of irrelevant content.

[Dvd-Znf]

InstallerUrl: https://ftp.mozilla.org/pub/firefox/nightly/latest-mozilla-central-l10n/firefox-143.0a1.multi.win64.installer.msix

There are also non vanity/permanent urls available to avoid hash mismatches:

InstallerUrl: https://ftp.mozilla.org/pub/firefox/nightly/2025/08/2025-08-02-21-04-37-mozilla-central/firefox-143.0a1.multi.win64.installer.msix

Related:

• [New Feature]: Find a better way to handle Nightly packages. #163098