Firefox extensions
Listed on Firefox Add-ons. They also install in Firefox-based browsers such as LibreWolf, Waterfox, Zen and Floorp.
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345 results, page 10 of 12
SponsorBlock
An open-source crowdsourced browser extension that skips sponsor segments and filler in YouTube videos.
Standard Notes
Encrypted notes built for the long term, where sync is free on unlimited devices and you can host the server.
Stark
A suite of accessibility tools for checking and fixing issues across design and development.
StatusGator
A hosted service that monitors thousands of cloud status pages and alerts teams about outages.
SteamDB Extension
A browser extension that adds SteamDB price history, player counts and extra data to Steam store pages.
Sticky Password
Password manager with an optional local-only Wi-Fi sync mode.
Strongbox
A KeePass-compatible password manager for iPhone, iPad and Mac with AutoFill and flexible storage.
Stylebot
Changes how a website looks without writing CSS.
Stylus
Applies custom CSS user styles to any website.
Surfingkeys
A browser extension for navigating the web with Vim-style keyboard shortcuts configurable in JavaScript.
Swisscows
A Swiss private search engine with no tracking and results filtered to be family-friendly.
Synology Photos
A photo library app for Synology NAS devices, with mobile apps that back up phone photos.
Tab Session Manager
Saves and restores window and tab sessions, with optional cloud sync.
Tab Stash
Stashes batches of tabs away as ordinary bookmarks.
Tab Wrangler
Chrome and Firefox extension that automatically closes tabs you have not used and keeps them for restoring.
Tabliss
Customisable new tab page with no account and no tracking.
TagSpaces
An offline file organizer that adds color-coded tags to files and folders without a database.
Taskade
An AI workspace for projects, notes, mind maps, AI agents and automated workflows.
Teampass
A self-hosted, open-source password manager for teams with folder-level access control and audit trails.
Temporary Containers
Opens tabs in disposable Firefox containers that are deleted afterwards.
Terms of Service; Didn't Read
A not-for-profit project that grades and summarizes the terms of service and privacy policies of websites.
Testfully
An API client for building, testing, documenting and monitoring APIs, usable offline or with cloud storage.
The Camelizer
A browser extension from camelcamelcamel that shows Amazon price history charts and creates price alerts.
Toby
Visual tab manager that organises links into collections on the new tab page.
TorGuard
A commercial VPN and proxy service with stealth connection options and client apps, including Android.
TransferNow
A web service for sending large files of up to 250 GB by email or shareable link.
Tree Style Tab
Shows Firefox tabs as a vertical tree with parent and child relationships.
Tresorit
Swiss zero-knowledge encrypted storage aimed at businesses.
Tridactyl
A Vim-like keyboard interface for Firefox with a command line and extensive key bindings.
Tube Archivist
Organize archived YouTube videos in a self-hosted library.
