diff --git a/typo3/sysext/core/Documentation/Changelog/master/Feature-90136-ShowApplicationContextInTheEnvironmentModule.rst b/typo3/sysext/core/Documentation/Changelog/master/Feature-90136-ShowApplicationContextInTheEnvironmentModule.rst
new file mode 100644
index 0000000000000000000000000000000000000000..6c8847faa88e28bfec12635624a1d19acab2e644
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Feature-90136-ShowApplicationContextInTheEnvironmentModule.rst
@@ -0,0 +1,22 @@
+.. include:: ../../Includes.txt
+
+====================================================================
+Feature: #90136 - Show application context in the Environment module
+====================================================================
+
+See :issue:`90136`
+
+Description
+===========
+
+The "Environment Overview" card in the admin tool will now show the
+application context the TYPO3 instance is running with.
+
+
+Impact
+======
+
+You can now look up the application context from inside the admin tool without
+having to log into the TYPO3 backend.
+
+.. index:: ext:install
diff --git a/typo3/sysext/install/Classes/Controller/EnvironmentController.php b/typo3/sysext/install/Classes/Controller/EnvironmentController.php
index e90801cd7a01e29dba308b4ed2ca699c91b38ec4..65e09dff4968776e36f1397afdfc0ad22646f6b7 100644
--- a/typo3/sysext/install/Classes/Controller/EnvironmentController.php
+++ b/typo3/sysext/install/Classes/Controller/EnvironmentController.php
@@ -18,6 +18,7 @@ namespace TYPO3\CMS\Install\Controller;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Symfony\Component\Mime\Address;
+use TYPO3\CMS\Backend\Toolbar\Enumeration\InformationStatus;
 use TYPO3\CMS\Core\Core\Environment;
 use TYPO3\CMS\Core\Database\ConnectionPool;
 use TYPO3\CMS\Core\FormProtection\FormProtectionFactory;
@@ -73,6 +74,7 @@ class EnvironmentController extends AbstractController
             'systemInformationCgiDetected' => GeneralUtility::isRunningOnCgiServerApi(),
             'systemInformationDatabaseConnections' => $this->getDatabaseConnectionInformation(),
             'systemInformationOperatingSystem' => Environment::isWindows() ? 'Windows' : 'Unix',
+            'systemInformationApplicationContext' => $this->getApplicationContextInformation(),
             'phpVersion' => PHP_VERSION,
         ]);
         return new JsonResponse([
@@ -990,6 +992,22 @@ class EnvironmentController extends AbstractController
         return $connectionInfos;
     }
 
+    /**
+     * Get details about the application context
+     *
+     * @return array
+     */
+    protected function getApplicationContextInformation(): array
+    {
+        $applicationContext = Environment::getContext();
+        $status = $applicationContext->isProduction() ? InformationStatus::STATUS_OK : InformationStatus::STATUS_WARNING;
+
+        return [
+            'context' => (string)$applicationContext,
+            'status' => $status,
+        ];
+    }
+
     /**
      * Get sender address from configuration
      * ['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress']
diff --git a/typo3/sysext/install/Resources/Private/Templates/Environment/Cards.html b/typo3/sysext/install/Resources/Private/Templates/Environment/Cards.html
index d0bae2147900d5fa83ef6ce44eed6eb94582b392..46018d334623f927eda81a0b665eeb78f0bfe75c 100644
--- a/typo3/sysext/install/Resources/Private/Templates/Environment/Cards.html
+++ b/typo3/sysext/install/Resources/Private/Templates/Environment/Cards.html
@@ -6,7 +6,7 @@
     <div class="card card-size-fixed-small">
         <f:render partial="Card/Header" arguments="{ title: 'Environment Overview', subtitle: 'Environment', icon: 'Icons/modules/install-show-environment.svg'}" />
         <div class="card-content">
-            <p class="card-text">Gives an overview of your host environment including its web server, PHP version and selected database.</p>
+            <p class="card-text">Gives an overview of your host environment including its web server, PHP version, selected database and the application context.</p>
         </div>
         <div class="card-footer">
             <a href="#" class="btn btn-default" data-modal-size="small" data-require="TYPO3/CMS/Install/Module/Environment/SystemInformation">Show System Information</a>
diff --git a/typo3/sysext/install/Resources/Private/Templates/Environment/SystemInformation.html b/typo3/sysext/install/Resources/Private/Templates/Environment/SystemInformation.html
index a8242bcef39fca719813f5e9d68e68208f4189d9..8a558ed6b89803e87a29ee82fa668aeb4328da81 100644
--- a/typo3/sysext/install/Resources/Private/Templates/Environment/SystemInformation.html
+++ b/typo3/sysext/install/Resources/Private/Templates/Environment/SystemInformation.html
@@ -53,6 +53,10 @@
             </td>
         </tr>
     </f:for>
+    <tr>
+        <td>Application Context:</td>
+        <td><strong class="text-{systemInformationApplicationContext.status}">{systemInformationApplicationContext.context}</strong></td>
+    </tr>
 </table>
 
 </html>