拡張機能
Tree Tabs
Manage your tabs in the sidebar!
uMatrix
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
Bookmarks by the Side
シンプルなブックマークサイドバー。
PageExpand
画像の一括ダウンロード、画像のポップアップ、サムネイルやビデオの展開、短縮URLの展開、URL文字列のリンク化、リファラ置換、主要掲示板の拡張表示など...
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
SimpleExtManager
拡張機能のアクセス権限をシンプルなメニューを用いて有効化・無効化することができます。
Google Messages for Opera Sidebar
This Add-On allows you to send text messages from your Opera Browser, to anyone you want.
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Free File Sender
Free file transfer
Simple Vertical Tabs
Simple Vertical Tabs
ChessGrow
Give easy access to ChessGrow from sidebar.
TollSjekk
TollSjekk
Browse++ Sidebar
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Site Settings Sidebar
Site specific settings on your sidebar.
GTasks Sidebar
Google Tasks on sidebar (not official)
ICQ for Sidebar
Run ICQ Web in Sidebar
Fraction Generator
Generate Fractions for copy to clipboard
Minúta po minúte
Minúta po minúte Denníka N
CalLite CRM
CalLite CRM - Monitor Plugin
Hackernews Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
SunBible
A beautiful way to read, study, and memorize the Bible
Techmeme Sidebar
Browse technology news on Techmeme in the sidebar.
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.
Workspace Tab Counter
A tab counter specifically for GX, which counts tabs per workspace too.
GETTR Sidebar
Bring your news feed from the free speech social media platform gettr.com to the Opera sidebar for quick access.
Blendup
A tool for web developers to preview blend modes on different page elements.
KJMZ DA BLAZE
Listen KJMZ DA BLAZE Radio with Opera Browser.