<div>
uninstall Firefox. <br />
<br />
go to <a href="http://www.firefox.com" rel="ugc">www.firefox.com</a>&nbsp;and redownload and install. should work.
</div>


uninstall Firefox.

go to www.firefox.com [http://www.firefox.com] and redownload and install. should work.

<div>
Thanks, Experts.<br />
I will try deactivating all AddOns and then if still necessary, uninstall/re-install.<br />
Will revert with final results.
</div>


Thanks, Experts.
I will try deactivating all AddOns and then if still necessary, uninstall/re-install.
Will revert with final results.

<div>
I have now tried de-activating all Addons and Extensions.<br />
So far, there has not been a recurrence.<br />
I guess I will just have to turn back on one or two at a time to finally corner the one causing the problem.<br />
Not a very elegant way of trouble-shooting. But I guess it is the only practical way if no sense can be made of the error message.<br />
Thanks, Experts for your help.
</div>


I have now tried de-activating all Addons and Extensions.
So far, there has not been a recurrence.
I guess I will just have to turn back on one or two at a time to finally corner the one causing the problem.
Not a very elegant way of trouble-shooting. But I guess it is the only practical way if no sense can be made of the error message.
Thanks, Experts for your help.

<div>
<div class="content wysiwyg-content">
Under certain conditions, when a new tab us is opened, the following error message appears;<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2012/05_w21/577669/browser-err.jpg" target="_blank" title="Firefox error messsage (21 KB)"><img alt="Firefox error messsage" class="file-block lazyload" style="max-width: 559px;" data-src="https://filedb.experts-exchange.com/incoming/2012/05_w21/577669/browser-err.jpg" /></a><br />
It does not seem to affect any functionalities.<br />
But would be grateful if an Expert could help me make sense of the message and resolve accordingly.<br />
Thanks
</div>
</div>


browser-err.jpg

Under certain conditions, when a new tab us is opened, the following error message appears;



It does not seem to affect any functionalities.
But would be grateful if an Expert could help me make sense of the message and resolve accordingly.
Thanks

Error message in Firefox 12

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.