軽くて強力なアドブロッカー。
uBlock Origin :: Add-ons for Firefox
https://addons.mozilla.org/ja/firefox/addon/ublock-origin/
uBlock Origin – Chrome ウェブストア
https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm?hl=ja
uBlock – Home
https://www.ublock.org/
uBlock – Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/UBlock