LOVE IT: No Problems Inherent to YesScript Rated 5 out of 5 stars
"will not hold list": Do more research for one's-self or click on the link "Support Email" to the right of "About this Add-on" to resolve issues first-->This addon deserves 4 stars Because-->I did my research before reviewing & giving it a real rating. My case may be particular to my setup with regard to yours with different issues:) I resolved issues beforehand with Quick JS & About:Config custom settings. After which I experienced NO PROBLEMS with YesScript.
ALSO-->While Quick JS that toggles Java is obvious, which addons conflict with what isn't always obvious or intuitive. Again, Please do more research in order to give an actual review -as not doing this artificially skews the over all ratings of addons which is a problem rampant in reviews. For this reason I would suggest to everyone to actually read the reviews to interpret them accurately and use the stars as a guide only: If something works for someone their going to give it a high rating, but if someone is having trouble they may give it a low rating when its not the addons fault.
I've never had a problem with YesScript other than resolving issues not inherent to YesScript as I described above... not only is it one if the 1st addons I install... I've used it for a while now & I LOVE IT! :)