Ant.com Antmarks Extension
Manage your favorite web pages
Visual bookmarks, bookmarks sync across various browsers and absolute safety for your bookmarks
Uses HTML5 to display PDF files directly in the browser.
Clearly makes blog posts, articles and webpages clean and easy to read. Save them to Evernote to read anywhere.
avast! Online Security
Avast Browser Security and Web Reputation Plugin.
Youtube on speeddial
Shows videos from Youtube subscriptions on speeddial
DuckDuckGo for Opera
DuckDuckGo enhancements for Opera.
Evernote Web Clipper
Use the Evernote extension to save things you see on the web into your Evernote account.
A realtime animated slideshow of photos from InstagramThis extension uses the Instagram(tm) API and is not endorsed or certified by Instagram.
Page Capture extension allows you to easily make screen shot of whole page, its selected part or visible content of a tab, and save it to a file. You can also add text, highlight or redact captured image before saving it
Userscript support for Opera.
Pocket (formerly Read It Later)
Pocket Extension for Opera - The best way to save articles, videos and more
Multiple label and account notifier for Google Mail (Gmail)
Get new mail notifications and quick access to Yandex.Mail.
Bookmarks Import & Export
Opera Bookmarks Import & Export
Pushbullet saves you time by moving your notifications, links, and files wherever you go.
Speed Dial for Gmail
A minimal SpeedDial extension to show the unread email count and title.
Play YouTube™ Videos in Flash or HTML5 Player
The most popular userscript manager for Blink-based browsers
Block ads seamlessly on popular websites
I don't care about cookies
Remove cookie warnings from tens of thousands of 'infected' websites.
Write emails faster! Increase your productivity with templates and keyboard shortcuts on Gmail™, Outlook™ and LinkedIn™.
Nimbus Screen Capture
Capture Web page, a part of it or the whole browser window, edit screenshots and save the images to Local File or Google Drive.
Phone-styled digital clock with Moon Phases! Now with configurable skins
uTorrent easy client
Extension add uTorrent web GUI in your web browser
Gmail on speed dial
Shows a preview of your unread mails on GMail
QR Codematic allows you to easily generate QR codes.
Capture Webpage Screenshot - FireShot
Capture webpage screenshots, edit and save screenshots to PDF/JPEG/GIF/PNG/BMP; upload, print, send to Photoshop, OneNote, clipboard or email
Bookmark Manager and more ....
Enlarge thumbnails on mouse over. Works on over 100 sites and is totally free from shady updates, ads or 3rd party tracking.