---
title: persist
slug: Mozilla/Tech/XUL/Attribute/persist
tags:
  - XUL Attributes
translation_of: Archive/Mozilla/XUL/Attribute/persist
---
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<dl>
 <dt>
  <code id="a-persist"><a href="https://developer.mozilla.org/zh-CN/docs/Mozilla/Tech/XUL/Attribute/persist">persist</a></code></dt>
 <dd>
  Type:
  <i>
   space-separated list of attribute names</i>
 </dd>
 <dd>
  A space-separated list of attributes that are maintained when the window is closed. When the window is re-opened, the values of persistent attributes are restored. In Mozilla, persistent attributes are stored in the per-profile file <code>localstore.rdf</code>. Persistence can also be stored using the <code>document.persist</code> function. In order for persistence to work, the element must also have an <code id="a-id"><a href="https://developer.mozilla.org/zh-CN/docs/Mozilla/Tech/XUL/Attribute/id">id</a></code>.</dd>
</dl>
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  </div>
<p></p>