Розширення
Modify Header Value
Add, modify or remove a header for any request on desired domains.
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
Internet Speed Test
Test your internet connection speed (upload and download) from a toolbar panel
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
Live editor for CSS and LESS - Magic CSS
Live preview of CSS/LESS code with an in-page editor. Autocomplete, convert LESS to CSS, beautify, minify, CSS reloader, linter, ...
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
Fingerprint Guard – Privatsphäre & Proxy
Verschleiert deinen digitalen Fingerabdruck (Canvas, WebGL, Audio u.v.m.) und erlaubt eigene Proxy- sowie Blocklisten.
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
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
NoFollow
Outline nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles.
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
Copy Title And Url
Copy the title and url in markdown, pukiwiki, html format.
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.
Web Edit
Легко тимчасово редагуйте веб-сайти одним натисканням кнопки.
Disable Cookies
Disable cookies for current domain.
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
Image Resizer
Rescale multiple images into different sizes in a single step
Picture in Play
Indicates whether the `picture` element is in use on a page.
View Page Source
Get access to the page source with the click of a button.
NPM Version Stats
Show npm package version usage statistics inline on the npmjs.com package page in the versions tab
PIX Studio Plugin
PIX RPA Studio Plugin
Font Inspector
Click on any HTML element to get the font info in a popup!
Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.
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.
Random password generator
A simple random password generator for Opera browser
Network Information
Useful information about your system's connection including, type, speed, and rtt.
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.
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.