Extensiones
Responsive Web Design Tester
Responsive Web Design Tester is a quick and easy way to test your responsive website.
Disable Cookies
Disable cookies for current domain.
Firebug Lite for Opera 15+
PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
Modify Header Value
Add, modify or remove a header for any request on desired domains.
Web Sniffer
View all HTTP Requests and Responses sent between the Web browser and the Web server.
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
SEO-tools
RemoteDev DevTools
Use Redux DevTools in the DevTools
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, ...
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
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!
HTTP Headers
Quickly view the HTTP headers of the current tab.
JSON Finder
Browse JSON like you do it in Finder.
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
JavaScript QR Code
Make QR Codes in JavaScript
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
Webfonting it!
The simplest extension for working with web fonts
AddCSS
This extension allows you to add your own custom website specific CSS style sheets.
Luminous: JavaScript events blocker
Extensión experimental para identificar, analizar y bloquear código y eventos JavaScript en tu navegador.
Web Developer Checklist
Analyses any web page for violations of best practices
Website Color Changer
Extends the Developer Tools, adding a sidebar for colors manipulation
Picture in Play
Indicates whether the `picture` element is in use on a page.
Flag & WHOIS SEO Domain Full Info
Return the domain's IP address , information about security, localization of server, ping, etc.
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
Google Analytics Debugger
A browser extension for debugging Google Analytics tracking code
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Selenium Page Object Generator
A nimble and flexible Selenium Page Object Model generator to improve agile testing process velocity.
SEO Analysis with Seoptimer
Just one click to SEO Analysis with Seoptimer
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