Sidebar session manager
Monthly Prayers Timetable
Islamic Monthly Prayers Timetable with HTML5 localStorage
Give easy access to ChessGrow from sidebar.
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
TickTick for Opera Sidebar (Unofficial Extension)
TickTick for Opera Sidebar. Unofficial Extension
V7 Extension Manager
simple extension manager for your side bar
ICQ for Sidebar
Run ICQ Web in Sidebar
Loads up Dharmesh Patels's excellent Web App for Hackernews on the Sidebar
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
Generate Fractions for copy to clipboard
Sidebar Covid Tracker
Simple Covid Tracker for Sidebar based of https://www.worldometers.info/coronavirus/
All Image Download. Image Zoom. Expand Thumbnail and Audio and Video. Expand the short URL. Override Referer. Extend BBS. etc...
Sidebar windows and tabs
Google Messages for Opera Sidebar
This Add-On allows you to send text messages from your Opera Browser, to anyone you want.
Gus EDT Extension
Extension pour utiliser le Gus-Edt
Browse technology news on Techmeme in the sidebar.
Minúta po minúte
Minúta po minúte Denníka N
JxArşiv | Araçlar
Currency, Meter, Square, VAT, Percentage, Letter, Word Count, Age Calculation and Archives ...
Bring your news feed from the free speech social media platform gettr.com to the Opera sidebar for quick access.
A beautiful way to read, study, and memorize the Bible
This widget uses Logos Bible Software's Biblia.com Bible API service to get the Bible text
Bookmarks by the Side
A simple bookmarks sidebar.
A simple menu to enable, disable and access options of extensions.
Access History from your Sidebar
Save pages for later reading
Free File Sender
Free file transfer
Adds notes managed by tagging without hierarchized tree to sidebar.
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.