This add-on displays the result of evaluating XPath expression or CSS selector.
Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.
A simple pomodoro clock to hack your productivity.
开源的 Selenium IDE, 现代的网页自动化工具 （支持行为录制和回放）。适用于网页自动化测试，表单填写以及网页内容抓取。
Check for best practices and common errors with your site's accessibility, speed, security and more.
A powerful XML Viewer, supports text/regex and jQuery/CSS, XPath selectors
Firebug extension for web analytics testing and debugging
Checks for compliance with the contrast levels of foreground and background colors combination based on the requirements of WCAG 2.1
Extends the Developer Tools, adding tools for debugging and profiling Angular applications.
Web extension based version of LiveReload. Supports Firefox 57 (Firefox Quantum)
Расширение, позволяющее значительно ускорить сбор фраз с помощью сервиса подбора слов Яндекс (wordstat)
Hacktools, is a web extension facilitating your web application penetration tests, it includes cheat sheets as well as all the tools used during a test such as XSS payloads, Reverse shells to test your web application.
Pixel Perfect Pro helps developers and designers to make best sites and more high quality products.
Parses the WSDL files and generates SOAP messages for you.
The extension rewrite the header (request or response) based on a rules table. It 's possible to add, modify or remove header fields for a choosen url pattern. It's possible to import/export the configuration
Find and download all images on a web page.
Construct custom Web Socket requests and handle responses to directly test your Web Socket services.
PixelZoomer takes a screenshot of the current website and provides various tools for pixel analysis. You can zoom into websites (up to 3200%), measure distances and pick colors with an eye dropper.
Selenium IDE alternative to record and export Selenium scripts. Provides reports & screenshots. Fast & open-sourced.
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.
Control the HTTP Referer on a per-site basis.