4 those who having problems with this add-on ??? Rated 5 out of 5 stars

This latest "Smart Video v0.973" addon works perfectly fine with the updated Youtube layout and for Firefox v18 but if you having problems then its often course by another addon conflict, so simply disable few at a time other addons and try again until you find the addon coursing the problem with smart-video addon or if that fails then completely uninstall Firefox browser but remember to backup your bookmarker sites and also your logins & passwords using "Password Exporter v1.2.1" by Justin Scott and keep a list on notepad of all your addons in a text file! Now you are ready to reinstall Firefox and try again but this time install smart-video addon first then go threw each one until you find the conflict addon coursing the problem...

This review is for a previous version of the add-on (0.973).  This user has a previous review of this add-on.