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Editorial Team
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Asked: 2026-05-14T07:27:08+00:00

When I use the back button on Firefox to reach a previously visited page,

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When I use the back button on Firefox to reach a previously visited page, scripts on that page won’t run again.

Is there any fix/workaround to have the scripts execute again when viewing the page the second time?

Please note that I have tested the same pages on Google Chrome and Internet Explorer and they work as intended.

Here are the files and the steps I used to test the problem:

(navigate to 0.html, click to get to 1.html, back button)

0.html

<html><body>
<script>
  window.onload = function() { alert('window.onload alert'); };
  alert('inline alert');
</script>
<a href="1.html">Click Me!</a>
</body></html>

1.html

<html><body>
<p>Go BACK!</p>
</body></html>
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1 Answer

  1. Editorial Team

    Set an empty function to be called on window.onunload:

    window.onunload = function(){};

    e.g.

    <html><body>
<script type="text/javascript">
  window.onload = function() { alert('window.onload alert'); };
  window.onunload = function(){};
  alert('inline alert');
</script>
<a href="1.html">Click Me!</a>
</body></html>

    Source:
    http://www.firefoxanswer.com/firefox/672-firefoxanswer.html (Archived Version)

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