Extensions
CryptoPro Extension for CAdES Browser Plug-in
Расширение позволяет использовать КриптоПро ЭЦП Browser plug-in в браузере. Для работы требует установленного ЭЦП Browser plug-in.
Контур.Плагин
Open in Google Chrome
Open current page, link, or all tabs in the Chrome browser.
Помощник диагностики
Cookie-Editor
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
EditThisCookie
EditThisCookie is a cookie manager. You can add, delete, edit, search, protect and block cookies!
Download all Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
Web Developer
Adds a toolbar button with various web developer tools. The official port of the Web Developer extension for Firefox.
Stylus
Redesign the web with Stylus, a user-style manager. Stylus allows you to easily install themes and skins for many popular sites.
Super Auto Refresh
Auto-refresh (reload) pages, on a selected interval. NO ADs. SUPER EASY.
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
Cleaner Pro - Clear Cache & History
Best way to clear cache and Opera browsing data!
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
HTML5 Editor
HTML5 Editor with CSS, JS, HTML validator and beautify code
Color Picker - Native Eyedropper
Determine the pixel's color on the screen with a magnifying glass eyedropper. It supports color selection history and clipboard copy
Internet Speed Test
Test your internet connection speed (upload and download) from a toolbar panel
Cookie Editor
Edit cookies related to the current page and all its sub-frames right from a popup
CORS Toggle
Adds Access-Control-Allow-Origin, Access-Control-Allow-Methods and Access-Control-Allow-Headers headers for CORS.
Font Finder
An easy-to-use font inspector to get CSS styles of the selected element
PerfectPixel by WellDoneCode
This extension helps develop your websites with pixel perfect accuracy!
Allow Copy-Right Click
Allow Right click, Allow copy, Selection on web sites that prevent it
Browserling - Cross-browser testing
Cross-browser test websites in the most popular browsers such as Internet Explorer, Edge, Chrome, Firefox, Safari and Opera. Try for free!
Full Screen
Go full screen with one click on the full screen button. That includes also the full screen movies such as YouTube, Vimeo, etc.
SEO-tools
SEO-tools - информация о доменах, аудит сайтов на SEO ошибки, а также технический аудит любой страницы. Свыше 100 онлайн сервисов
Контур.Расширение
SeoQuake extension
SEOquake is a free plugin that provides you with key SEO metrics, along with other useful tools such as SEO Audit and many others
Extensions for Mermaid
A browser extension for Chrome, Opera & Firefox that adds Mermaid language support to GitHub. A fork from the not updated GitHub + Mermaid extension.
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
Extension source viewer
View source code of extensions in the Chrome Web Store, Firefox or Opera addon gallery. Has button to install from Chrome Web Store.
Responsive Web Design Tester
Responsive Web Design Tester is a quick and easy way to test your responsive website.
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
Random password generator
A simple random password generator for Opera browser