# New Firebug no longer reports JS errors

**URL:** https://forum.kirupa.com/t/new-firebug-no-longer-reports-js-errors/293148
**Category:** web dev
**Created:** [July 23, 2009, 9:19pm UTC](https://forum.kirupa.com/t/new-firebug-no-longer-reports-js-errors/293148 "2009-07-23T21:19:03Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)
#### Post date: [July 23, 2009, 9:19pm UTC](https://forum.kirupa.com/t/new-firebug-no-longer-reports-js-errors/293148/1 "2009-07-23T21:19:03Z")

</div>

I upgraded to Firebug 1.4.0. It no longer shows JS errors such as:

```php

window.location.indexOf('indexOf only works on strings so this will fail');

```

I was forced to open up IE8 to tell me that was erroneous. How do you get Firebug or Firefox to start reporting these kind of errors?