How to turn off Auto-show sidebar in fullscreen Safari 9 In the new El Capitan version of OS X, in safari 9, in fullscreen if you move your cursor to the left, it shows the sidebar.

Is there a way to disable it ?
Simply copy and paste one or both into Terminal:

defaults write com.apple.safari ShowSidebarInTopSites bool=FALSE
defaults write com.apple.safari ShowSidebarInNewWindows bool=FALSE


If you don't want to copy two commands, then you can do both at the same time:

defaults write com.apple.safari ShowSidebarInTopSites bool=FALSE; defaults write com.apple.safari ShowSidebarInNewWindows bool=FALSE