Tafoegings
Picture in Play
Indicates whether the `picture` element is in use on a page.
TwicPics Companion
Using TwicPics has never been so easy!
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Disable Cookies
Disable cookies for current domain.
Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu
Fontstorage
The simplest extension for identifying and selecting fonts on a website.
Clear Cache
Clear your cache and browsing data with a single click of a button.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
Web Edit
Easily edit websites temporarily with a click of a button.
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.
Font Inspector
Click on any HTML element to get the font info in a popup!
CSSViewer
CSSViewer
IP Geolocation Lookup
IP Location Lookup by ipwhois.io
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
Strike Out Nofollow Links
Just strikes out nofollow links via CSS3 selectors.
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
md5 hash generator
MD5 hash generator (offline mode)
Favicon Stealer
Very simple thing for their job
View Page Source
Krijg toegang tot de broncode van de pagina met een klik op de knop.
(X)HTML5 Checker
A small extension to validate the markup of current tab
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
Rabbit URL Opener
Rabbit URL Opener (Rahul Digital) - Bulk URL's Opener Extension just lets you open multiple URLs at once. More about Rabbit URL Opener http://rahuldigital.org/url-opener/ http://rahuldigital.com/url-opener/
sha1 hash generator
SHA1 hash generator (offline mode)
NoFollow
Outline nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles.
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
SelectorsHub
Locators Plugin to Auto Generate and Verify Playwright Locators, XPath & CSS Selectors.
Rainbow States
Color AWS Step Functions states
HypeStat Analyzer
Check any website's traffic
HexDump - Hex Viewer
Display file contents in hexadecimal, and ascii