A common complaint has been heard on the internet about this issue.
What the heck in js.worthathousandwords.com, every time I try to read an email this comes up and I can’t read I only see a blank page and nothing else will happen the js.worthathousandwords.com is at the bottom left hand corner of my screen. Help!
Some of the experts have this answer.
A short term solution is to quickly press escape on the keyboard to stop the js, this would apparently stop the page to load while you are on Yahoo mail.
Worthathousandwords dot com is some sort of service provider that serves images for ads on Yahoo. The big blank screen we see is an image they are serving — maybe by some prankster or maybe some ad gone haywire.
Yahoo should have more answers about this issue.
Do not forget to run a virus scan on your computer if you are having this problem. Make sure your virus listings are updated.