Leather
Leather is 100% open-source and audited by top security firms. Be part of our community on X
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SQLiBar
SQLiBar – Pentesting & SQLi Toolkit A Developer Tools extension for security testing, real-time SQL injection pattern detection, request manipulation, parameter discovery, and payload encoding.
Sitemap XML Validator
Open any sitemap XML URL in Firefox and this add-on detects it automatically — or paste a URL manually. Validates XML structure, checks every <loc> URL for HTTP status, and exports a full CSV report. No account required.
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IndexedDBBrowser
Browse and manage the IndexedDB databases of any website. View, inspect, and delete records.
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Link Checker
Scan all links on the current page and find broken ones. Reports HTTP status codes, flags 4xx and 5xx errors and redirects, and lets you filter down to just the problems.
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BetterBS
BetterBS erweitert BS-Stream um ein modernes, benutzerfreundliches Interface: Übersichtliche Startseite, Verlauf, Favoriten-Verwaltung, Fortsetzen-Funktion und schnellere Navigation – direkt in den Browser eingebunden.
Reddit Old Reskin
Modify the old.reddit.com appearance and add mobile-friendly responsive design features, infinite scroll functionality, and viewport meta tags only when the user actively navigates the website.
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YouTube Nuke Mix
Удаляет mix и start_radio из URL YouTube, чтобы выходить из плейлистного режима
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Command Pilot
Command Pilot is a lightweight browser extension that converts natural language into OS-specific CLI commands using a fast, React-based interface. It helps developers generate, reuse, and manage terminal commands effortlessly.
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AI Chronos Architect V2
Tarayıcınızın içinde çalışan nihai yapay zeka işletim sistemi. Kod stüdyosu, canlı editör, zaman bükücü ve gelişmiş araçlarla web'e hükmedin.
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CORS Unbound Beta
An official version of CORS Unbound is now available. Please use the stable release unless you specifically need to test upcoming changes. Bypass CORS and rewrite HTTP headers directly in the browser.
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Page Change Watcher
Watch any web pages in the background and get a notification when they change. Compare the whole page by default or a specific CSS selector, with preset or custom check intervals.
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URL Surgeon
Chop and change URL Slugs to your heart's content. URL Surgeon is a useful tool for developers trying to debug routing issues in their projects. Create persistent rules to strip parameters or rewrite paths, all saved securely in your local storage.
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Brain OS — AI Agent
Your AI brain that sees everything you browse, learns what matters, and gets smarter over time.
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Kryon Like Studying Screenshot
Tiện ích chụp ảnh màn hình dành riêng cho Kryon Like Studying
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Tube+ Universal Toolkit
YouTube enhancer + universal adblock, tracking protection, cookie popup blocker, auto dark mode, screenshot, and notes/bookmark manager.
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Mini Board Games
Two classics in one popup: Tic-Tac-Toe with a perfect minimax AI and Connect Four with a thinking opponent. Local 2-player too.
Cross-Origin Storage
Implements the proposed Cross-Origin Storage API, letting sites share files with your consent for a faster and more efficient web.
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