Deploy Firefox ESR 115 (Serbian) (x64) with Intune

Overview

This guide walks through deploying Firefox ESR 115 (Serbian) (x64) 115.36.0 from Mozilla with Intune Win32 packaging, policy sync, and rollout verification.

Download Installer

Build the IntuneWin Package

1. Create a working folder on your local machine (for example: D:\Intune).
2. Create two subfolders inside the working folder: Input and Output.
   • D:\Intune\Input: Folder for all setup files. All files in this folder are compressed into an .intunewin file.
   • D:\Intune\Output: Stores the generated .intunewin package.
3. Place Firefox Setup 115.36.0esr.exe in the Input folder.
4. Download the Microsoft Win32 Content Prep Tool (IntuneWinAppUtil.exe) and place it in D:\Intune.

Create a structured working directory before packaging Firefox ESR 115 (Serbian) (x64) so rebuilds and troubleshooting remain consistent.

D:\Intune
├── Input
│   └── Firefox Setup 115.36.0esr.exe
├── Output
└── IntuneWinAppUtil.exe

5. Open Windows PowerShell or Command Prompt as Administrator.
6. Navigate to the working folder: cd D:\Intune.
7. Run the following packaging command to generate the Firefox Setup 115.36.0esr.intunewin package. For packaging background, see .intunewin package preparation.

IntuneWinAppUtil.exe -c .\Input -s "Firefox Setup 115.36.0esr.exe" -o .\Output

8. After the command finishes, the generated package should be available in the D:\Intune\Output folder.

D:\Intune
├── Input
│   └── Firefox Setup 115.36.0esr.exe
├── Output
│   └── Firefox Setup 115.36.0esr.intunewin
└── IntuneWinAppUtil.exe

Note: Windows application size is capped at 30 GB per app.

Create the Intune App Object

In Intune, create the Win32 app object for Firefox ESR 115 (Serbian) (x64) and align core settings before moving to assignments.

1. Go to Apps → Overview, then choose the Windows platform card (or expand Platforms and select Windows).

   

2. Click Create to add a new app.

   

3. In the Select app type panel, choose Windows app (Win32).

   

4. On the App information page, click Select app package file.

   

5. Upload Firefox Setup 115.36.0esr.intunewin, then confirm the App package file panel.

   

Configure App Settings

6. Tune configuration values for Firefox ESR 115 (Serbian) (x64) here to reduce drift between test devices and production cohorts.

   Name	Firefox ESR 115 (Serbian) (x64) 115.36.0
   Description	Firefox ESR 115 (Serbian) (x64) 115.36.0
   Publisher	Mozilla
   App version	115.36.0

   

7. Configure how Intune installs and uninstalls the app. Enter the values below in the Program tab and leave all other settings unchanged. See Intune install and uninstall commands for command guidance.

   Install/Uninstall type	Command line
   Install command	"Firefox Setup 115.36.0esr.exe" /S /DesktopShortcut=false /PrivateBrowsingShortcut=false /MaintenanceService=false /PreventRebootRequired=false⧉
   Uninstall command	"%ProgramFiles%\Mozilla Firefoxuninstallhelper.exe" -ms⧉
   Install behavior	System
   Device restart behavior	App install may force a device restart
   Allow available uninstall	Yes
   Installation time required	60 minutes
   Return codes	Keep the default Intune return codes.

   

8. Define which devices are eligible to install the app. Learn more in Intune requirements explained.

   Check operating system architecture	No. Allow this app to be installed on all systems.
   Minimum operating system	Windows 10 1607
   Additional requirement rules	No requirements are specified.

   

9. On the Detection rules page, set Rules format to Manually configure detection rules. For the concept, see Intune detection rules explained.

   

10. Click Add to create a detection rule.

    

11. Select the appropriate Rule type (MSI, File, or Registry) based on the installer. Use the table below as a reference.

    #	Type	Target	Method	Value
    1	File	%ProgramFiles%\Mozilla Firefoxfirefox.exe	App version greater than or equal to 115.36.0.9630	greater than or equal to 115.36.0.9630

    Associated with a 32-bit app on 64-bit clients: No.

12. On the Dependencies page, click Next unless this app must install after another app.

    

13. On the Supersedence page, click Next unless this app replaces an older app.

    

Assign and Deploy

14. Assign Firefox ESR 115 (Serbian) (x64) in rollout rings (pilot -> controlled broad) so you can gate expansion on install and detection quality.

    Assignment options

    Required

    Installs the app automatically on targeted users or devices. Use this after install, uninstall, and detection are verified.

    Available for enrolled devices

    Shows the app in Company Portal so users can install it manually. Use this for pilot users, IT validation, or optional apps.

    Uninstall

    Automatically removes the app from targeted devices. Use this when you need to retire or remove the app.

    Note: Start with a dedicated test group before broad deployment. For example, use the Required assignment option to automatically install the app on targeted devices.

    

15. Review all configuration details, then click Create to deploy the app.

    

16. Verify the app in Intune. Confirm that the upload is finished, the application is saved, and the app overview shows the expected package details.

    Note: If Intune says the app is not ready yet, wait a few minutes and refresh the page.

    

Trigger Intune Policy Sync

Run a deliberate sync pass for Firefox ESR 115 (Serbian) (x64) and capture timestamps for assignment and enforcement correlation.

End User Experience

Check end-user outcomes for Firefox ESR 115 (Serbian) (x64) early so support teams receive accurate rollout expectations.

Required apps install automatically. During installation, Windows may show notifications from Microsoft Intune Management Extension. Users can see the app move from installing to installed.

Note: Notification visibility depends on Windows notification settings and Intune app deployment behavior.

Track Install Progress and Results

Use reporting trends from Firefox ESR 115 (Serbian) (x64) pilot devices to validate readiness for the next rollout stage.

Click Device install status or User install status to see the list of devices or users with their installation status.

Uninstall the App from Intune

When the app is no longer needed, remove it by changing the Intune assignment to Uninstall for the target group.

1. Go to Apps → All apps, then select the app you want to remove.

   

2. Open Properties and click Edit next to Assignments.

   

3. Move the target group to the Uninstall section.

   

4. Review the assignment, then click Save. Devices will remove the app after the policy is applied.

   

After saving, the uninstall policy is applied. The device removes the app automatically.

Note: The uninstall process may take a few minutes depending on device check-in and policy sync timing.

Troubleshoot Installation and Detection

Use this troubleshooting pass before changing assignments or detection logic. Validate assignment scope, installer behavior, and Intune Management Extension outcomes first.

If the issue repeats after these checks, collect fresh Intune Management Extension logs and compare against the latest assignment and requirement settings.

Deployment Fit and Risks

Use this section to confirm whether Firefox ESR 115 (Serbian) (x64) aligns with your deployment policy, endpoint state, and support model before broad assignment.

• Install behavior is currently set to system; confirm it matches the expected execution context.
• Restart behavior resolves to basedOnReturnCode; align this with maintenance windows and user-impact constraints.
• Validate requirements and detection against real endpoint state before widening assignment scope.
• Track early rollout telemetry and stop expansion if failure patterns appear outside expected thresholds.

Validation Checklist

• Run a pilot rollout of Firefox ESR 115 (Serbian) (x64) to a small ring before broad assignment.
• Confirm the install command executes silently in the target context: "Firefox Setup 115.36.0esr.exe" /S /DesktopShortcut=false /PrivateBrowsingShortcut=false /MaintenanceService=false /PreventRebootRequired=false.
• Confirm detection logic (types observed: manual/unspecified) matches real endpoint state after install.
• Monitor return codes and enforcement state in Intune Device install status and Intune Management Extension logs.
• Confirm uninstall intent and rollback readiness are documented for the same pilot devices.

Change Control and Rollback Notes

• Document a rollback baseline for Firefox ESR 115 (Serbian) (x64) (target version: 115.36.0) before broad rollout.
• Rollback path available via uninstall command: "%ProgramFiles%\Mozilla Firefoxuninstallhelper.exe" -ms.
• Use phased assignments (pilot -> ring1 -> broad) with explicit go/no-go checkpoints after each ring.
• For upgrades, confirm uninstall/rollback execution on pilot devices before decommissioning previous builds.

Deeper Internal References

Use the focused guides below for deeper implementation details tied to this deployment.

• Packaging artifact validation before assignment rollout
• Assignment intent strategy (Required vs Available)
• Intune Management Extension logging and error isolation
• Install/uninstall execution checks for Intune context