Pixel Perfect Pro
Pixel Perfect Pro helps developers and designers to make best sites and more high quality products.
3.931 users
HTTP request maker
Displays a sidebar that lets you to forge HTTP requests. Press Alt+Shift+Y to show the sidebar and make your own HTTP request. You can choose the method GET, HEAD, POST, OPTIONS, PUT DELETE and the body data to send. Response in the main window.
3.924 users
Fontanello
A browser extension that lets you display the basic typographic styles of a text by right-clicking it.
3.904 users
WCAG Contrast checker
Checks for compliance with the contrast levels of foreground and background colors combination based on the requirements of WCAG 2.2
3.808 users
cliget
Download login-protected files from the command line using curl, wget or aria2.
3.800 users
FindSomething
在网页的源代码或js中找到一些有趣的东西。欢迎一起交流,微信canxiao_xiao
3.771 users
HTTP Version Indicator
An indicator showing the HTTP version used to load the page in the address bar.
3.746 users
Ahrefs SEO Toolbar: On-Page and SERP Tools
On-page SEO report, broken link checker, redirect tracer, and country changer for SERP in one add-on. If you have an active account at ahrefs.com, you will also get instant access to Page, Domain, and keyword metrics via your Ahrefs account.
3.719 users
retire.js
Scanning website for vulnerable js libraries.
3.688 users
FirePHP
Log from PHP to a devtools panel.
3.637 users
simple-modify-headers
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
3.612 users
Carbonalyser
Allows to visualize the electricity consumption and greenhouse gases (GHG) emissions that your Internet browsing leads to.
3.549 users
Postman Interceptor
Capture requests from any website within Firefox and send them to Postman App
3.545 users
ColorFish 🐠 Color Picker
Open-Source Color Picker for Websites and Desktop Apps. With ColorFish you can get a color reading from any point in your browser and desktop. ColorFish is the only eyedropper browser extension with desktop color selection support.
3.516 users
CookieManager - Cookie Editor
Edit cookies related to the current page and all its sub-frames right from a popup
3.506 users
Copilot (GPT-4) in Google
🗨️ Microsoft Copilot answer alongside Google results.
3.462 users
Try XPath
This add-on displays the result of evaluating XPath expression or CSS selector.
3.435 users
Google Analytics Debugger
Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript. P.S: this add-on is migrated from Chrome store.
3.429 users
Hoppscotch Extension for Firefox
Provides better experience for using the Hoppscotch web app. Haven't used Hoppscotch ? It's an amazing quick API Request Builder. Try it at https://hoppscotch.io/ !!!
3.419 users
ffCK Overlays
Right-click any element to remove it. Inspired by the Chrome extension "F*ck Overlays".
3.407 users
Simple WebSocket Client
Construct custom Web Socket requests and handle responses to directly test your Web Socket services.
3.395 users
Omnibug
The leading browser extension for analytics and marketing technology testing and debugging
3.313 users
base64 decoder
select some text, and base64 decode it.
3.304 users
4ebur.net
4ebur.net VPN Proxy is a secure, anonymous internet connection.
3.247 users
SEO Analysis & Website Review by WooRank
Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.
3.239 users