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://messenger/content/mailWindow.js:180 OR Script: chrome://messenger/content/mailWindow.js:174 This happens only in 1 particular mail id, when I try to scroll or delete any messages. This started happening after I restored my Windows8, since the update didn't succeed. I also copied the old profile to the new one and in total I have 6 email ids active in the profile. Please help.