Instead of manually unfollowing everyone by clicking on "Unfollow", is there a way to automatically unfollow everyone on Twitter?
If you want to unfollow everyone on your Twitter account you have to use some third-party applications like Twitter unfollow (Chrome Extension) or alternatively through Chrome or FF Developer Tools.
Using Chrome Extension
Using Chrome Developer Tools
There is also another smart and easy way of bulk unfollowing at once on Twitter using Chrome or FF Developer Tools