Расширения
Tampermonkey
Change the web at will with userscripts
Search image
Right-click on some text and find its image with Google image search.
Gismeteo
Прогноз погоды от Гисметео. Текущая погода и детальный прогноз по всему миру.
FreeStyler
Styles and skins for all popular sites in the web
RSS Zing
Notification for new RSS feed posts. No account required.
Nimbus Screen Capture
Создавайте скриншоты всей страницы или только её части. Редактируйте скриншоты. Записывайте видео с экрана.
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
AutoPagerize
AutoPagerize load next page automatically in many web sites.
Image Searcher
Search similar image by "Google search by Image".
Filter request headers
Block certain values (cookies, etc.) from http request headers.
iForum Opera
The Old Reader extension
This extension provides a toolbar icon to notify you about unread items in your The Old Reader account.
IPv4 to IPv6 Converter
Convert Internet Protocol v4 (IPv4) address to Internet Protocol v6 (IPv6) address using different methods.
UzHack - ответы к UzTest
Ответы к тестам и трененгам онлайн системы тестирования UzTest.RU
Base64 Encode and Decode
Quickly Encode & Decode Base64 strings
The Old Reader Notifier
Notifies you about unread items in your The Old Reader account.
Open in (background) tab
Extends the context menu of selected text to open an URL in a new tab.
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
HTTP Headers
Quickly view the HTTP headers of the current tab.
Quick Shortcuts
This extension lets you easy find the most common Opera actions.
Whats My Info
Shows your IP address and other useful info.
Pixiv image downloader
Slim Scroll bar
Modern & slim looks for browser scroll bars!
EX.UA/FS.UA без рекламы
Позволяет отключить рекламные блоки: в шапке, между элементами списка, на стартовой, а также на странице поиска.
SG Fórum tuning
Feedly Notification
Notifier of unread articles for Feedly.
Shareaholic for Pinterest
Pin images from any website to Pinterest. See the official Pinterest pin count for any link.
Classic Tabs
Classic Tabs brings back some of the extra tab options from Opera 12.
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
Linkify For Opera
Converts any plain text to clickable links
TweetRight +
Share web pages, selected text, links and images on Twitter by right click.