拡張機能
Hola Better Internet
Access websites blocked in your country, company or school with Hola. Hola is free and easy to use!
Avast Online Security
Avast Browser Security and Web Reputation Plugin.
Enhancer for YouTube
YouTube™のユーザーエクスペリエンスを向上させる多数の機能。
convert2mp3.net Online Video Converter
Adds an option to convert YouTube.com, Dailymotion.com, and Clipfish.de Videos online to MP3, MP4 and more formats
Tampermonkey
The world's most popular userscript manager
ibVPN - Best VPN & Proxy
Best VPN & Proxy for Unblocking Restricted Websites
Adblock Fast
The world’s fastest ad blocker! Same ad blocking, 8x accelerated page loading.
DuckDuckGo for Opera
DuckDuckGo enhancements for Opera.
VirtualShield - Fast and reliable VPN
Browse the web safely and anonymously. Built for privacy protection, backed by our fast, reliable, and secure network.
Evernote Web Clipper
Evernote の拡張機能を使用して、Web 上で見つけたページを Evernote アカウントに保存します。
Turn Off the Lights
画面全体が暗くなり映画館にいる気分。YouTube™ ほか動画サイトでもOK。
QR Codematic
QR Codematic allows you to easily generate QR codes.
Nimbus Screen Capture
ウェブページ全体やページの一部、またはブラウザウィンドウ全体をキャプチャ、スクリーンショットを編集し、ローカルファイルまたはGoogleドライブに画像を保存します。
Bookmarks Import & Export
Opera Bookmarks Import & Export
Pocket (formerly Read It Later)
Opera 向け Pocket 拡張機能 - 記事、ビデオなどを保存するベストな方法
Gmail Notifier
Multiple label and account notifier for Google Mail (Gmail)
YouTube™ Flash-HTML5
Play YouTube Videos in Flash or HTML5 Player
Speed Dial for Gmail
A minimal SpeedDial extension to show the unread email count and the first unread email's title.
I don't care about cookies
Get rid of annoying cookie warnings from almost all 'infected' websites!
Set password for your browser ( Opera lock )
This extension will allow users to set password for the browser to avoid unauthorized access. Prompts for password on opera startup
SimilarWeb
エンゲージメント率、キーワード ランク、トラフィック ソースなどサイトのトラフィック、あらゆるサイトの主要指標を表示。
Pushbullet
Bringing together your devices, friends, and the things you care about.
Youtube on speeddial
Shows videos from Youtube subscriptions on speeddial
Gmail Notifier
Notifies you about unread e-mail in your Gmail account.
Side Calculator
Calculator on the new sidebar of Opera.
AdBlocker for YouTube™ Video
removes all sorts of advertisement and banners from YouTube
MailTrack for Gmail
無料で使用回数無制限のEメールトラッキング。Gmail内で送信済みと既読をお知らせするダブルチェックマーク (✓✓) が表示されま
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
Disable HTML5 Autoplay
Disables autoplay of all HTML5 audio and video
Google Keep Sidebar
Access to Google Keep website on the sidebar.
Yandex Wordstat Assistant
Reddit Enhancement Suite
A suite of modules that enhance your Reddit browsing experience