扩展
GTasks Sidebar
Google Tasks on sidebar (not official)
Simple Bookmark Sidebar
This extension shows your bookmarks in Opera's sidebar.
Workspace Tab Counter
A tab counter specifically for GX, which counts tabs per workspace too.
InoReader Sidebar
Mobile version Inoreader.com on sidebar (not official)
The Stories (sidebar edition)
Smart and beautiful tool for keeping links. Create a story for every ocasion!
SunBible
A beautiful way to read, study, and memorize the Bible
GeoKW
Zaznacz lub wpisz numer KW, aby uzyskać informacje o działkach w tej księdze.
Quick History Redux
A Redux (bug fix) for gucio1007's "Quick History". It shows your browsing history in the browser sidebar.
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.
Landmarks
Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.