YAML Pretty
Prettify and validate YAML or convert to JSON
Shadow Forge
Design CSS shadows with sliders preview and copy
CSS Shadow
Visual CSS box-shadow generator with live preview
XML Mini
Beautify or collapse XML with one-click copy
CloudWarning
CloudWarning is a transparency-focused Firefox add-on that alerts you whenever a website uses Cloudflare’s infrastructure.
3 utenti
Fetch Pro
Make GET POST PUT DELETE requests and view JSON responses
Web Storage
Read write and delete browser local and session storage
Image Info
List all images on the page with size format and dimensions
Markup Gen
Render Markdown as full standalone HTML page and download
Redirects Blocker Lite
Blocks automatic tab redirections caused by scripts or meta refresh.
Grad Pick
Pick from 50 curated CSS gradients and copy instantly
KeyCode
Press any key to see its keyCode code and key properties
Money Log
Simple personal finance tracker with categories
QR Code
Create QR codes for current page URLs or custom text
Visit King
Track page views per domain and crown your top websites
CSS Grid
Build CSS grid layouts visually with code output
Paste Bank
Store up to 10 clipboard snippets and copy them fast
Dalton
See how colours appear with protanopia deuteranopia and more
CORS Unbound
Bypass CORS and rewrite HTTP headers directly in the browser, automatically injecting the correct Access-Control-* headers derived from the browser’s CORS request headers.
CopyTabTitleUrl (MV2 version)
Copy the title and URL of the tab or windows to the clipboard, with different format options.
3 utenti
Percent Enc
URL percent-encoding tool with component and full modes
WCAG Check
Check colour contrast ratio for WCAG AA and AAA
Headers Spy
View and search HTTP response headers for any endpoint
KB Shortcuts
Quick reference cheatsheet of browser keyboard shortcuts
Text Minify
Minify CSS JS or HTML by removing whitespace and comments