Extensions
Open in GIMP photo editor
Adds a context menu item to send images directly to GIMP photo editor
fonts infos
An extention to show/inspect and analyze fonts in web-pages.
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
AddJS
This extension allows you to add your own custom website specific 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)
JavaScript QR Code
Make QR Codes in JavaScript
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.
KML/KMZ Viewer
Can be used to view KML/KMZ Files in the browser.
Octotree Pro
GitHub code tree on steroids
Webfonting it!
The simplest extension for working with web fonts
PixelGrid
The tool to overlap your website layout with a grid.
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
Internet users feedback about the sites
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.
ColorHexa - Color Information and Conversion
Color tool converting and providing information about any color.
retire.js
Scanning website for vulnerable js libraries
Определение CMS - iTrack
Расширение для определения CMS сайта
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.
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.
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
CSS Shapes Editor
Interactive editor for CSS Shapes.
CSS3 Button Maker
Is CSS button code generator free easy tool that allows you create beautiful and elegant CSS web buttons in few clicks
Github diff helper
When you have too many files in one github diff, this extension helps you filter out the noise
Jenkins Helper
Monitor Jenkins build state and node state, and provide some convenient services.