Расширения
Open in GIMP photo editor
Adds a context menu item to send images directly to GIMP photo editor
(X)HTML5 Checker
A small extension to validate the markup of current tab
AddJS
This extension allows you to add your own custom website specific JavaScript.
CF-Predictor
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
JavaScript QR Code
Make QR Codes in JavaScript
Web Developer Checklist
Analyses any web page for violations of best practices
stylish-hub
A browser extension that brings a new GitHub experience
Lorem Fill
A webpage form filler that populates context specific random test data into forms elements.
.no { CSS }
Opera 12 reminiscent Shift-G CSS zapper (use Alt-G)
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.
Selenium Page Object Generator
A nimble and flexible Selenium Page Object Model generator to improve agile testing process velocity.
Webfonting it!
Простейшее расширение для работы со шрифтами в веб
PixelGrid
The tool to overlap your website layout with a grid.
KML/KMZ Viewer
Can be used to view KML/KMZ Files in the browser.
Octotree Pro
GitHub code tree on steroids
NoFollow
Outlines nofollow links, detects nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles
Random password generator
A simple random password generator for Opera browser
WebMoney Advisor
Отзывы интернет-пользователей о сайтах
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
retire.js
Scanning website for vulnerable js libraries
Web Essentials
Interacts with Visual Studio extensions supporting Browser Link
ColorHexa - Color Information and Conversion
Color tool converting and providing information about any color.
DomainUserAgent
This extension changes the UserAgent sent by your browser on a per-domain base. You can set up a different UserAgent for a specific domain, but still use the default one otherwise.
Определение CMS - iTrack
Расширение для определения CMS сайта
Alix
Alix allows you to lint your HTML for Accessibility issues simply by applying a stylesheet that makes use of advanced CSS selectors.
TO Helper
TO Helper allows you speed up your daily work as Chat Mod.
SEO TOOLS - YATEO
Opens all the essential tools for SEO in one click.
{DOM.Tree}
This extension show the element of a document in a tree view!
CSS Gradient Inspector
Extends the Developer Tools, adding a sidebar that displays information about the gradients applied to the inspected element.
CSS3 Button Maker
Is CSS button code generator free easy tool that allows you create beautiful and elegant CSS web buttons in few clicks