---
title: "Deprecation: #84982 - Overriding page TSconfig mod. with user TSconfig mod."
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-84982"
source: "Changelog/9.3/Deprecation-85016-OverridingPageTSconfigModWithUserTSconfigModDeprecated.rst"
modified: "2026-09-14T09:47:36+00:00"
---

# Deprecation: #84982 - Overriding page TSconfig mod. with user TSconfig mod.

See [forge#84982](https://forge.typo3.org/issues/84982)

## Description

Overriding page TSconfig properties on a backend user or group basis is usually
done by prefixing the page TSconfig path with `page.` in user TSconfig.

As an exception, properties within the page TSconfig top level object `mod.` could
sometimes also be overridden in user TSconfig using `mod.` and omitting `page.`. This
has been deprecated: `mod.` now needs to be overridden in user TSconfig by prefixing
the path with `page.`, too.

## Impact

User TSconfig paths that start with `mod.` will trigger a PHP `E_USER_DEPRECATED` error and will
stop working with core v10.

## Affected Installations

Instances that set TSconfig on backend user or group basis starting with `mod.`.

## Migration

Simply prefix the user TSconfig path with `page.` as usual if overriding page TSconfig
on user TSconfig level. Example:

```typoscript
// Before
mod.web_list.disableSingleTableView = 1
// After
page.mod.web_list.disableSingleTableView = 1
```