F

firefox-extension

Free video and audio downloader — web app and browser extension over a shared Rust/WebAssembly core. Nothing of yours is uploaded. https://opendownloader.app

A new tab page that shows the tabs you already have open, grouped by site, above a briefing you choose. Free, no account, open source. https://opentabs.app

Siftr is a browser extension that reads your feed so you don't have to take it at face value. It analyzes social media content for rhetorical manipulation, misinformation signals, and AI-generated imagery, then returns an authoritative, cited response on what you're actually looking at. Three capabilities drive it: rhetoric analysis that identifies manipulation tactics like false urgency and emotional loading; misinformation signals that flag claims contradicting established sources or matching known archetypes; and local image authenticity analysis that detects AI generation artifacts without sending images off your device. When you want more than a flag, Siftr queries a verification API for a verdict with supporting citations and a concise explanation. Built on proven open-source components and modeled on feed-interception architecture, with a privacy-first posture: image analysis is fully local, text verification is opt-in, and there is no tracking, no analytics, and no data sales.

Boxing — a hierarchical, infinite-canvas bookmark organizer for Chrome & Firefox. Two-level (large/small boxes) with per-tab memory, WebDAV sync, 14 locales, and warm-neutral design. https://boxing.xxx91n.com/

Extracts metadata from each page's HEAD, and makes it available to other add-ons, so they don't have to scan each page themselves

https://renewedtab.com/

A cross browser extension that routes downloads from Zendesk into separate folders

A Firefox extension that catches conditional mediations and prompts if the user wants to use their hardware key to furfill these requests or want to continue on the normal path (password manager's passkey).

A better version of the Bandcamp web player

Analyze job ads against your skills and preferences, identify warning signs, and get a private, local second opinion before applying.

A cross-browser MV3 extension that allows you to navigate webpages via a controller. Mainly designed for streaming sites like Netflix or Primevideo. Highly customizable.

Configuração do Firefox para o VoidBR.

Puts a reader-view icon beside every search result. One click opens the article in clean, readable text without ever loading the site — no scripts, no ads, no trackers, no cookie banners.

Track Packages from the right-click menu.

Easily counts down from a predefined number and alarms you when the count has reached zero.

An enhanced text formatter for GaiaOnline Forums, Private Messages, Guilds, and Profile comments.

Replace your error page with a more stylish appearance with additional features.

Export your extensions!