Disable Firefox new tab shortcuts and sponsored content

Add FirefoxHome policy to hide top sites, sponsored shortcuts, and
Pocket articles on the new tab page for all profiles.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/firefox-ublock.md

@@ -67,6 +67,13 @@ contient principalement :
   "policies": {
     "DontCheckDefaultBrowser": true,
     "DisableDefaultBrowserAgent": true,
+    "FirefoxHome": {
+      "Search": true,
+      "TopSites": false,
+      "SponsoredTopSites": false,
+      "Pocket": false,
+      "SponsoredPocket": false
+    },
     "ExtensionSettings": {
       "uBlock0@raymondhill.net": {
         "installation_mode": "force_installed",
@@ -77,6 +84,19 @@ contient principalement :
 }
 ```
 
+### Page Nouvel onglet (FirefoxHome)
+
+La policy `FirefoxHome` masque les raccourcis de sites et les articles
+sponsorisés sur la page d'accueil et le nouvel onglet :
+
+| Parametre | Valeur | Effet |
+| --- | --- | --- |
+| `Search` | `true` | Conserve la barre de recherche. |
+| `TopSites` | `false` | Masque les raccourcis de sites frequents. |
+| `SponsoredTopSites` | `false` | Masque les raccourcis sponsorises. |
+| `Pocket` | `false` | Masque les articles Pocket recommandes. |
+| `SponsoredPocket` | `false` | Masque les articles Pocket sponsorises. |
+
 `ExtensionSettings` force l'installation de uBlock Origin pour chaque profil
 Firefox. Si l'extension est supprimee ou absente, Firefox la reinstalle au
 demarrage suivant.

powershell/Install-Firefox.ps1

@@ -143,6 +143,13 @@ function Get-FirefoxEnterprisePolicies {
         policies = [ordered]@{
             DontCheckDefaultBrowser = $true
             DisableDefaultBrowserAgent = $true
+            FirefoxHome = [ordered]@{
+                Search             = $true
+                TopSites           = $false
+                SponsoredTopSites  = $false
+                Pocket             = $false
+                SponsoredPocket    = $false
+            }
             ExtensionSettings = [ordered]@{
                 "uBlock0@raymondhill.net" = [ordered]@{
                     installation_mode = "force_installed"