Extensions
RemoteDev DevTools
Use Redux DevTools in the DevTools
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
Picture in Play
Indicates whether the `picture` element is in use on a page.
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
Firebug Lite for Opera 15+
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!
Modify Header Value
Add, modify or remove a header for any request on desired domains.
SEO-tools
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
Disable Cookies
Disable cookies for current domain.
AddCSS
This extension allows you to add your own custom website specific CSS style sheets.
JSON Finder
Browse JSON like you do it in Finder.
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, ...
Font Inspector
Click on any HTML element to get the font info in a popup
CF-Predictor
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
stylish-hub
A browser extension that brings a new GitHub experience
Get Thumbnails or Image to video YouTube
Faites une vignette ou des images à partir de vidéos YouTube
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Corser - Authorize CORS requests
Cross-browser extension for authorizing cross-origin resource sharing (CORS) requests. This extension can be installed on browsers supporting the WebExtensions API (https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions) It intercepts all CORS requests and responses headers, and records/adds/changes their values so as to authorized unauthorized CORS requests. Use this extension only for testing purposes
ChroPath for Opera
AutonomIQ offers a developers platform ChroPath to generate and validate unique selectors like relative xpath with iframe support
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
Website Color Changer
Extends the Developer Tools, adding a sidebar for colors manipulation
SEO Analysis with Seoptimer
Just one click to SEO Analysis with Seoptimer
Web Sniffer
View all HTTP Requests and Responses sent between the Web browser and the Web server.
Google Analytics Debugger
A browser extension for debugging Google Analytics tracking code
JavaScript QR Code
Make QR Codes in JavaScript
Flag & WHOIS SEO Domain Full Info
Return the domain's IP address , information about security, localization of server, ping, etc.
HTTP Headers
Quickly view the HTTP headers of the current tab.
fonts infos
An extention to show/inspect and analyze fonts in web-pages.
WordPress Theme and Plugins Detector
Cet outil détecte les thèmes et les plugins utilisés sur les sites WordPress et affiche des informations à leur sujet.
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
NetworkMonitor
Shows the response times and uptime of a desired server. Useful to see how performs internet or a wireless access point.
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