Leudachain
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
Translator
Translate selected or entered text
Sidebar for YouTube™
Easy Access to YouTube via Sidebar UI
Instagram Sidebar
Access to Instagram.
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
2048 Sidebar
The famous 2048 game on the Opera Sidebar.
Side Calculator
Calculator on the new sidebar of Opera.
Sidebar for Google™ Translate
Easy Access to Google Translate via Sidebar UI
V7 Bookmarks
Bookmarks manager in your sidebar
Google Keep Sidebar
Access to Google Keep website on 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.
Twitter Lite Sidebar (Unofficial)
Access Twitter Lite through Opera Sidebar. This is an UNOFFICIAL extensions.
Skype Sidebar
Access to Skype for Web on the sidebar.
V7 Sessions
Sidebar session manager
Google Translate Sidebar for Opera
Access Google Translator through Opera Sidebar. This extension is UNOFFICIAL, and has nothing to do with Google.
Raindrop.io - Smart Bookmarks
"Save Button" for Web
Quick Notes
The extension allows you to quickly save text notes on the sidebar of your browser.
Sidebar Sticky Note
Free HTML5 Sidebar Sticky Notes
Text to Voice
Open sidebar selected text and click in context menu 'Selected text to Speech' to listen
V7 History
Access History from your Sidebar
V7 Notes
Old school opera notes
Bookmarks by the Side
A simple bookmarks sidebar.
SimpleExtManager
A simple menu to enable, disable and access options of extensions.
V7 Tabs
Sidebar windows and tabs
TweetTab
Access to Twitter mobile site. For Opera 29+ only.
Yandex.Translate Sidebar
This is an unoffical extensions. Yandex Translate for Opera Sidebar
V7 Stash
Save pages for later reading
V7 Extension Manager
simple extension manager for your side bar
Web Panel
Navigate to websites in the sidebar.
Bookmarks Manager and Viewer
An elegant bookmark manager with fuzzy search and more
Vertical Tabs
Manage your tabs in the sidebar!
Tree Tabs
Manage your tabs in the sidebar!