Extensions
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
sha1 hash generator
SHA1 hash generator (offline mode)
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
Octotree
GitHub on steroids
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.
Picture in Play
Indicates whether the `picture` element is in use on a page.
Encode Decode HTML
Encode HTML to show it in the HTML pages a code instead of rendered HTML. Decode HTML to convert it back to HTML code
Fontstorage
L'extension la plus simple pour identifier et sélectionner des polices sur un site web.
CSS & JS Injector
Easily customize your browsing experience CSS & JS Injector is a tool for developers, designers, and power users. Apply custom CSS styles and JavaScript to specific websites effortlessly. Boost productivity and customize the look, feel, and functionality of websites without altering its source code.
Modify Header Value
Add, modify or remove a header for any request on desired domains.
SeoQuake extension
SEOquake est un plug-in gratuit qui vous fournit les principales métriques de référencement ainsi que d'autres outils utiles tels que l'Audit SEO et bien d'autres
PIX Studio Plugin
PIX RPA Studio Plugin
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
Disable Cookies
Disable cookies for current domain.
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
Network Information
Useful information about your system's connection including, type, speed, and rtt.
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Random password generator
A simple random password generator for Opera browser
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!
Web Edit
Modifiez facilement des sites Web temporairement en un seul clic.
Favicon Stealer
Very simple thing for their job
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
NPM Version Stats
Show npm package version usage statistics inline on the npmjs.com package page in the versions tab
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
Font Inspector
Click on any HTML element to get the font info in a popup!
CSSViewer
CSSViewer
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
Nextsense XML Signing Component
Signing XML document.
Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers