WOT causing problems? Rated 5 out of 5 stars

WOT has been wonderful for us. However, in the last several days, we have been getting messages likes this:

A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete.

Script: chrome://wot/content/search.js:344

On 3 other computers, Firefox has been crashing the OS frequently, even though there have been no recent changes to the operating system (Windows XP SP3) or Firefox.

This review is for a previous version of the add-on (20091028).