Is anyone else having this problem with Thunderbird?

I use Mozilla Thunderbird for e-mail. It recently upgraded itself to version 24.0.1. Since then, every time it loads up, I get an "unresponsive script" dialogue showing Script: chrome://messenger/content/mailWindow.js:173

I check the "Don't ask me again" checkbox, and click the "Stop Script" button, but it keeps happening every time I load the program. Very annoying! I didn't have this problem before.

In the Error Console it shows the following errors:

Could not read chrome manifest 'file:///C:/Program%20Files/Mozilla%20Thunderbird/chrome.manifest'.

Could not read chrome manifest 'file:///C:/Documents%20and%20Settings/Shaun%20Pearce/Application%20Data/Thunderbird/Profiles/n4bbmevv.default/extensions/en-GB@dictionaries.addons.mozilla.org/chrome.manifest'.

I take it chrome.manifest is something to do with Google Chrome - which would be great if I was actually using Google Chrome! I use Firefox instead.

Is anybody else having this problem? Perhaps more importantly, does anybody have a solution? I looked on the Mozilla web site, and it has been reported as a bug, but so far no solution.

Any help and advice would be much appreciated.

Shaun Pearce