The TabberNeue extension allows wikis to create tabs within a page. It is a forked and rewritten version of [Extension:Tabber](https://www.mediawiki.org/wiki/Extension:Tabber). It includes multiple improvements such as page transclusion, responsive layout support, ARIA support, and conform to Wikimedia UI. **TabberNeue is a complete replacement of Tabber, please disable or remove Tabber before enabling TabberNeue.**
Nested tabbers need to be written as parser functions. Instead of the `<tabber/>` tags, they are wrapped with `{{#tag:tabber|}}` and separated by `{{!}}-{{!}}`. It is useful when creating nested tabber.
With the transclusion mode, the syntax is different, and it's more similar to `<gallery>` syntax.
The contents of the page of the first tab will be transcluded. Other tabs will be transcluded on-demand with AJAX, performing a request to the MediaWiki api. Once requested, they won't be fetched again until the page is reloaded. Note that Tabbers on the transcluded page will not be rendered.
Tabs are created with `pageName|tabName`, and separated by a new line.
`$wgTabberNeueParseTabName` | Parse tab name as wikitext. This can have a performance impact and cause unexpected behaviors. |`true` - enable; `false` - disable | `false`
`$wgTabberNeueUpdateLocationOnTabChange` | If enabled, when a tab is selected, the URL displayed on the browser changes. Opening this URL makes that tab initially selected |`true` - enable; `false` - disable | `true`
`$wgTabberNeueUseLegacyTabIds` | If enabled, tabpanel IDs will not be prepended with "tabber-tabpanel-". This provides better compatibility with the old Tabber extension, but will cause issues if there are headings with the same name as an existing tab |`true` - enable; `false` - disable | `false`