Mozilla Firefox Plugins, Add-ons and extension Page 75 of 83

Blur or redact sensitive data on your screen in one click — before you share, record or screenshot. Auto-detects emails, cards, API keys. 100% local.

Translation Comparison translates text and compares translations between Google, Microsoft, Yandex and other translators.

A class to easily place data in DOM and update them immediately upon change. It is similar to Angular, Vue, ReactJS and alike frameworks while trying to keep the code clean and the learning curve small.

Grays-out Twitter verified checkmarks of Twitter Blue users.

Chess Helper provides chess hints and analysis on Chess.com and Lichess.org. Works on all boards, including live games, bot games, puzzles and more.

Protect PII and sensitive information in any web app. Professional-grade encryption that fits perfectly into your team's workflow.

Feedless removes feeds on different social media platforms including: YouTube, LinkedIn, Reddit, TikTok, Pinterest, SubStack, Twitter/X, Facebook, BlueSky, Instagram, and YouTube Music. Feedless takes a different approach to short-form content with settings for completely...

Minibase is a browser extension that converts any webpage, article, or video into clean Markdown with one click. It captures YouTube transcripts, X/Twitter threads, and e-commerce data, strips ads and clutter, and saves everything to a local Vault that connects to Claude or...

Free 3D printing cost calculator with MakerWorld integration, STL/3MF file upload, multi-color support, and batch collection estimation. Includes an API and MCP server for AI-powered workflows.

Temp mail allows users to maintain their anonymity online. By using a disposable email address, individuals can prevent their primary email inbox from being flooded with spam or promotional messages.

Password Boss is the easiest way to manage all of your passwords and automatically log you into your websites. The Password Boss app stores your passwords, payment details and digital notes.

Tracya is a no-code in-app onboarding tool for SaaS teams. Build tooltips, modals, highlights and banners by clicking on the real elements of your app, publish in minutes, and pay a fixed price that never counts your users. Hosted entirely in the EU.

I Am Bored is a two-path site built for one specific moment: when you're bored right now and every app on your phone has already failed to fix it.

Bilingual browser translation for Safari (iPhone/iPad/Mac), Chrome and Firefox — webpage side-by-side plus dual subtitles for YouTube, X video and podcasts. Bring your own LLM key.

Block sites and win the productivity game.

Hilo is a browser extension for Chrome and Firefox. Select a word, a sentence or a paragraph on any page, click the small button that appears, and an explanation streams in beside the text. No new tab, no copy-pasting into a chat.

Linkidex is bookmarks but better. Never waste time trying to re-find a link you had on another browser, or that your friend sent you 2 years ago, or that you know is posted somewhere in the depths of slack or reddit but now you can’t find it.

Don't miss out on the monthly Flying Blue Promo Rewards offers from KLM and Air France. Turn your Flying Blue Miles into journeys to your favorite places.

Private browser time tracking — active time per site, trends, heatmap, and focus score. 100% local, zero network requests, open source.

Sidebar for Facebook brings Facebook right into your Firefox Sidebar. Get notifications, status and photos from the left sidebar of Firefox instantly.

SimpleHold is an easy-to-use and full-featured non-custodial wallet for popular cryptocurrencies, such as Bitcoin, Ethereum, Litecoin and other altcoins.

ModHeader is a powerful browser extension that provides users with complete control over HTTP(S) headers. By allowing you to modify, add, or remove headers in a simple and user-friendly interface.

Allows user to write note in any web page.

Earn free crypto as you shop online.

Open-source Pow VPN client for Windows, Linux and Android, based on Amnezia VPN with Pow VPN account integration and multi-protocol connectivity.