diff --git a/typo3/sysext/core/Documentation/Changelog/master/Feature-89747-CustomTablesWithRecordBrowserInForms.rst b/typo3/sysext/core/Documentation/Changelog/master/Feature-89747-CustomTablesWithRecordBrowserInForms.rst
new file mode 100644
index 0000000000000000000000000000000000000000..a6c3d75087c5e6460a5ebdec1ba5ef7ea0abeb0a
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Feature-89747-CustomTablesWithRecordBrowserInForms.rst
@@ -0,0 +1,43 @@
+.. include:: ../../Includes.txt
+
+============================================================
+Feature: #89747 - Custom tables with record browser in forms
+============================================================
+
+See :issue:`89747`
+
+Description
+===========
+
+The record browser in forms now accepts arbitrary custom tables if configured accordingly.
+
+The option :yaml:`browsableType` of the :yaml:`Inspector-Typo3WinBrowserEditor` can be set to an arbitrary table:
+
+.. code-block:: yaml
+
+   TYPO3:
+     CMS:
+       Form:
+         prototypes:
+           standard:
+             formElementsDefinition:
+               MyCustomElement:
+                 formEditor:
+                   editors:
+                     # ...
+                     300:
+                       identifier: myRecord
+                       # ...
+                       browsableType: tx_myext_mytable
+                       propertyPath: properties.myRecordUid
+                       # ...
+
+Similar to the :yaml:`ContentElement` form element custom logic must be added in the matching frontend partial to actually display something for the selected record.
+
+
+Impact
+======
+
+Form definitions can be set up to allow editors the selection of arbitrary database records and then render them using custom logic.
+
+.. index:: Backend, ext:form
\ No newline at end of file
diff --git a/typo3/sysext/form/Resources/Public/JavaScript/Backend/FormEditor/InspectorComponent.js b/typo3/sysext/form/Resources/Public/JavaScript/Backend/FormEditor/InspectorComponent.js
index 3be29a3bcc7b42f7349012678ec26e19f9528f21..f90be5d2fd5cc1be290dd2e820d125beb3afb707 100644
--- a/typo3/sysext/form/Resources/Public/JavaScript/Backend/FormEditor/InspectorComponent.js
+++ b/typo3/sysext/form/Resources/Public/JavaScript/Backend/FormEditor/InspectorComponent.js
@@ -2368,11 +2368,6 @@ define(['jquery',
         'Invalid configuration "propertyPath"',
         1477300590
       );
-      assert(
-        'tt_content' === editorConfiguration['browsableType'] || 'pages' === editorConfiguration['browsableType'],
-        'Invalid configuration "browsableType"',
-        1477319859
-      );
 
       getHelper()
         .getTemplatePropertyDomElement('label', editorHtml)