Разширения
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Image Resizer
Rescale multiple images into different sizes in a single step
Selenium Page Object Generator
A nimble and flexible Selenium Page Object Model generator to improve agile testing process velocity.
Hitsteps Visitor Manager
Get your website analytics insight and get notified about updates and live support requests in your dashboard
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
md5 hash generator
MD5 hash generator (offline mode)
Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
SEO Nofollow links highlighter
Highlight all nofollow links on any site you want. Excellent for SEO purposes.
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
OctoLinker
OctoLinker – Links together, what belongs together.
CF-Predictor
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
.no { CSS }
Opera 12 reminiscent Shift-G CSS zapper (use Alt-G)
Design Mode
Edit any page's content by switching to design mode, where you can modify the content and drag images around like a Word Editor
Web Widgetizer
Web Widgetizer is a extension offering a range of features to enhance browsing. It allows users to create separate Opera windows for specific websites, manage favorite links, customize window dimensions, toggle auto-start, and open links in popup tabs via button click or shortcut (Ctrl + Shift + A). This versatile tool optimizes browsing convenience and efficiency.
HTTP Headers
Quickly view the HTTP headers of the current tab.
MultiPass
Automatically login to Basic Authentication using data based on URL regexp.
NoFollow
Outlines nofollow links, detects nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles
retire.js
Scanning website for vulnerable js libraries
JavaScript QR Code
Make QR Codes in JavaScript
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.
InTab - Code CSS 2X Faster
Visually Style Any Website In Any Browser
TestCase Studio
TestCase Studio record the user actions performed on a web application in English Sentences.
Sitemap Explorer: Check and View XML Sitemaps
This extension helps you find, inspect, export, and view XML Sitemap files for any site you navigate in a browser.
HypeStat Analyzer
Check any website's traffic
Modify Header Value
Add, modify or remove a header for any request on desired domains.
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
Piral Inspector
The official Piral developer tools browser extension.
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.