"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" ?! Rated 5 out of 5 stars

whenever i want to delete some webpages saved by Scrapbook after a break it shows a Warning Window calls: "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"
would you please help us to solve?

This review is for a previous version of the add-on (1.5.6.1-signed.1-signed).  This user has other reviews of this add-on.