Firefox extension

Firefox Extensions are add-ons that allow users to customize their web browser from Mozilla. They are downloadable through the Firefox Add-on website. Modern extensions follow WebExtension standard and are most often written in HTML, JavaScript, and CSS.
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A browser extension for automating your browser by connecting blocks
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Oct 22, 2025 - Vue
猫抓 浏览器资源嗅探扩展 / cat-catch Browser Resource Sniffing Extension
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Dec 17, 2025 - JavaScript
Chrome extension to return youtube dislikes
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Dec 12, 2025 - JavaScript
🥗 All-in-one professional pop-up dictionary and page translator which supports multiple search modes, page translations, new word notebook and PDF selection searching.
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Oct 8, 2025 - TypeScript
Skip YouTube video sponsors (browser extension)
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Dec 17, 2025 - TypeScript
Integrating ChatGPT into your browser deeply, everything you need is here
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Dec 15, 2025 - JavaScript
Captcha solver extension for humans, available for Chrome, Edge and Firefox
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Jun 4, 2024 - JavaScript
简悦 ( SimpRead ) - 让你瞬间进入沉浸式阅读的扩展
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Sep 16, 2025 - JavaScript
The all-in-one tool to supercharge your productivity ⌨️
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Jan 11, 2024 - JavaScript
☁️ Sync your bookmarks privately across browsers and devices
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Dec 17, 2025 - JavaScript
WebChatGPT: A browser extension that augments your ChatGPT prompts with web results.
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Aug 13, 2024 - TypeScript
Blocks specific sites from appearing in Google search results
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Dec 17, 2025 - TypeScript
Stylus - Userstyles Manager
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Dec 17, 2025 - JavaScript
Free and open-source API Client & Interceptor.
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Dec 18, 2025 - TypeScript
QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.
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Dec 17, 2025 - C++
An enhancer/customiser for the all-in-one productivity workspace Notion
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Nov 19, 2024 - JavaScript
Reddit Enhancement Suite
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Feb 12, 2025 - JavaScript
scanner detecting the use of JavaScript libraries with known vulnerabilities. Can also generate an SBOM of the libraries it finds.
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Dec 12, 2025 - JavaScript
Debloated fork of the extension "I don't care about cookies"
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Dec 18, 2025 - JavaScript
A Browser Extension for faster reading on ANY website!
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Jul 16, 2025 - TypeScript
Created by Mozilla
Released April 4, 2006
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