Tampermonkey is the world's most popular userscript manager.
React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the "⚛️ Components" or "⚛️ Profiler" tab.
FireShot makes full page screen captures - http://bit.ly/RlBQMV Screenshots are quickly captured and: ― Saved as Image / PDF with links and text * ― Sent to clipboard ― Printed ― Annotated * ― Uploaded * ― E-Mailed * * OS Windows only
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
The Web Developer extension adds various web developer tools to the browser.
Identify technologies on websites
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
DevTools extension for debugging Vue.js applications.
Violentmonkey provides userscripts support for browsers. It's open source! https://github.com/violentmonkey/violentmonkey
★ Used by Several Million users on different platforms ★ 1) Screen capture web pages 2) Selected regions 3) Whole browser window 4) Slack upload Edit screenshots. Save images as local files or Google Drive. Tools for Annotation. Upload and share