JHTML-CHOSEN-001

JHtml::_('formbehavior.chosen')

Chosen.js (formbehavior.chosen)

Chosen shipped with Joomla 3. It is not in Joomla 4. Fancy select uses a different stack.

JHtml::_('formbehavior.chosen') → Core styled <select>, Choices.js, or Tom Select

Dies at Joomla 3 → 4J3: Works nativelyJ4: Removed — fatalJ6: Removed — fatalBC plugin: no — already dead on J4You rewrite thisJavaScript

What you will see

  • jQuery(...).chosen is not a function
  • chosen.jquery.min.js 404

Symptoms people search

admin dropdowns unstyled / broken · chosen is not a function

Replace this code

Swap JHtml::_('formbehavior.chosen') for Core styled <select>, Choices.js, or Tom Select.

Joomla 3

Remove or stop calling this

JHtml::_('formbehavior.chosen', 'select');

Joomla 4 / 6

Use this instead

// Remove Chosen. Use a native select or a Joomla 4+ fancy select field.

How to fix it

  1. 1Remove formbehavior.chosen.
  2. 2If you need searchable selects, use the core field or Tom Select — not Chosen.

Also known as

chosen · formbehavior.chosen

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