Leudachain
Picture in Play
Indicates whether the `picture` element is in use on a page.
Kalkulator PRPG by dabox
Profesjonalny system automatycznej wyceny pojazdów dla graczy ProjectRPG. Stworzony przez dabox.
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.
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
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
Fontstorage
The simplest extension for identifying and selecting fonts on a website.
Reddit to Mp4 converter | reditor
redditdownloader.us allows users to download Reddit videos with audio in high quality.
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
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!
showHTML
This extension shows information about HTML elements on a web page when you hover over them.
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
IP Geolocation Lookup
IP Location Lookup by ipwhois.io
Disable Cookies
Disable cookies for current domain.
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.
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
NoFollow
Outline nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles.
Strike Out Nofollow Links
Just strikes out nofollow links via CSS3 selectors.
View Page Source
Get access to the page source with the click of a button.
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
(X)HTML5 Checker
A small extension to validate the markup of current tab
PIX Studio Plugin
PIX RPA Studio Plugin
Font Inspector
Click on any HTML element to get the font info in a popup!
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
SelectorsHub
Locators Plugin to Auto Generate and Verify Playwright Locators, XPath & CSS Selectors.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
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, ...