Chrome系拡張機能ボタン　(この順でインストールする)
chrome://settings/
https://chrome.google.com/webstore/detail/settings-button/adakfpemmbngeohfigfpldjimamijoek
chrome://bookmarks/
https://chrome.google.com/webstore/detail/awesome-bookmarks-button/dgkaehmmlnblfmmpdebmhjieffcjjjph
chrome://history/
https://chrome.google.com/webstore/detail/history-button/fofpnhmbgmmeaialapfddhbhfongoinh
chrome://downloads/
https://chrome.google.com/webstore/detail/downloads/jfchnphgogjhineanplmfkofljiagjfb
chrome://plugins/
https://chrome.google.com/webstore/detail/plugins/mmcblfncjaclajmegihojiekebofjcen
chrome://flags/
https://chrome.google.com/webstore/detail/developer-flags-for-googl/fojocjhjjckpokddghpfadcgeldkfafn
chrome://extensions/
https://chrome.google.com/webstore/detail/extensions-button/hfpnjihjndnmfcbclplooodjmhcdncan
TamperMonkey
https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo
InstantMusic
https://chrome.google.com/webstore/detail/instant-music/ehebnoicojclpjjblbacdjmpjpkocmml
WorldClocks
https://chrome.google.com/webstore/detail/world-clocks/innfmeekncjandlanpgdmmogkcimekgo