Disable-BrowserNotifications.ps1

Disable-BrowserNotifications.ps1

<#
.SYNOPSIS
    Disables desktop notifications for major browsers
.DESCRIPTION
    This script creates registry entries to disable desktop notifications for Chrome and Edge.
    Works on both domain and non-domain Windows machines
.NOTES
    Run as Administrator for HKLM registry modifications
#>

filter Assert-KeyExists
{
  
    $exists = Test-Path -Path "$_"

    if (!$exists)
    {
        New-Item -Path "$_" -ItemType Directory -Force
    }
}

function Set-RegKey
{
    param(
        [string]$Path,
        [string]$Name,
        [string]$Value,
        [string]$Type
    )

    $Path | Assert-KeyExists

    if((Get-ItemProperty -Path $Path -Name $Name -ErrorAction SilentlyContinue).Value -ne $Value)
    {
        Set-ItemProperty -Path $Path -Name $Name -Value "$Value"
    } else
    {
        Write-host "nothing to do."
    }

}

$ChromeRegPath = 'HKLM:\SOFTWARE\Policies\Google\Chrome'
$EdgeRegPath = 'HKLM:\SOFTWARE\Policies\Microsoft\Edge'
$AllowUrlsKey  = 'NotificationsAllowedForUrls'
$NotificationKeyName = 'DefaultNotificationsSetting'

# Ensure the subkey exists
$ChromeAllowPath = Join-Path $ChromeRegPath $AllowUrlsKey
$EdgeAllowPath   = Join-Path $EdgeRegPath $AllowUrlsKey
$ChromeAllowPath | Assert-KeyExists
$EdgeAllowPath   | Assert-KeyExists

Set-RegKey -Path "$ChromeRegPath" -Name "$NotificationKeyName" -Type DWORD -Value "2"
Set-RegKey -Path "$EdgeRegPath" -Name "$NotificationKeyName" -Type DWORD -Value "2"


$AllowedUrls = @(
    "https://teams.microsoft.com",
    "https://slack.com"
    "https://outlook.com"
    "https://outlook.office.com"
)

$i = 1
foreach ($url in $AllowedUrls)
{
    New-ItemProperty -Path $ChromeAllowPath -Name $i -Value $url -PropertyType String -Force
    New-ItemProperty -Path $EdgeAllowPath   -Name $i -Value $url -PropertyType String -Force
    $i++
}