PinFollowing is a chrome extension that simply sets the "Following" tab as the default selection on Twitter.
PinFollowing は、Twitter でフォロー中タブを初期選択にするだけの chrome 拡張です。
https://chrome.google.com/webstore/detail/pin-following/biohnbhlnoebedemmigmnnckajfndhki
This icon is using from https://hiyokoyarou.com/tw/