Thunderbird being slow (beachball)
Someone who I work with told me that after updating to El Capitan, Thunderbird slows down when they tried to open and move email messages and the spinning beachball was displayed, I have fixed this issue for now (hopefully it won't pop up again), is anyone else having this issue with Thunderbird in El Capitan?
MacBook Pro, OS X El Capitan (10.11)