Textbox Auto Resizer
Automatically resizes input fields and textareas while you're typing
VK Player Controller
This is a part of VK Player Controller for OS X.
Ak Kamal e-Security Client Loader
extension to start Ak Kamal e-Security Client from browsers without Java-support
Easily customizable keyboard shortcuts for Opera
Adds an option 'Search with Bing' in the context menu(right click menu), to search for highlighted text
Linkify For Opera
Converts any plain text to clickable links
My Google Bookmarks
This simple extension adds a link to your Google Bookmarks.
Night Video Tuner
Protect your eyes and improve your sleeping cycles by adjusting video temperature and many other properties!
No more duplicated tabs!
It will not allow for duplicated tabs in your tabs bar. Less tabs will give you better performance of your browser and easier overview of the tab bar.
Search within the site
This extension let you search on site with Google or Yandex search
Website Color Changer
Extends the Developer Tools, adding a sidebar for colors manipulation
WordPress Theme and Plugins Detector
Detects the theme and plugins used in WordPress and display information about them.
Hot Virtual Keyboard Extension
Brings up the virtual keyboard when entering text input fields. Hot Virtual Keyboard software has to be installed and running.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
Test internet download speed by downloading image from any of your frequently visited sites. Provide image link and size for test
Theater Mode for YouTube™
Force YouTube to open in its player in the theater mode
Write your email in Markdown, then make it pretty.
Minimalistic todo extension for your sidebar
True DNS Analysis / intoDNS
CAPTCHA free DNS lookup of TLD, ccTLD and new gTLD domains
Vocablurry is the best new way to learn new words without knowing that you're learning
Shows previews of linked articles on Wikipedia pages
Window Layout Resizer
Resize the current window into different customizable layouts (Multiple monitors are supported).
YouTube™ No Annotations
Prevents YouTube HTML5 and Flash players from auto-enabling annotations
YouTube™ on Hover
View YouTube while hovering mouse over a YouTube link on any website
Open the current page on any phone with a camera using a barcode scanner app
VK Add Emoji smileys
This add-on add Emoji-smileys to the list on vk.com
Price comparison directly in Opera - Get alerts for lower prices available in other stores, when you shop online
This extension tries to fill every user input form field which was collected earlier..
Utilities for even more powerful web browsing. Search all open tabs, retrieve previously closed tabs, and make notes.
Save ad-free articles and web pages to your email inbox for later reading.