Firefox extensions
Listed on Firefox Add-ons. They also install in Firefox-based browsers such as LibreWolf, Waterfox, Zen and Floorp.
Filters and sorting
149 results, page 5 of 5
Toby
Visual tab manager that organises links into collections on the new tab page.
Tree Style Tab
Shows Firefox tabs as a vertical tree with parent and child relationships.
Tridactyl
A Vim-like keyboard interface for Firefox with a command line and extensive key bindings.
Turn Off the Lights
Dims everything around a video and adds a site-wide dark mode.
uBlacklist
A browser extension that hides sites you choose from search engine results.
uBlock Origin Lite
A Manifest V3 content blocker from the uBlock Origin project that filters ads and trackers.
Ui.Vision
An open source browser extension and desktop app for recording and running browser and desktop macros.
Unhook
A browser extension that hides YouTube recommendation feeds, comments and other distractions.
Unpaywall
A browser extension that finds legal open-access copies of paywalled research papers.
User-Agent Switcher and Manager
A configurable browser extension that changes the User-Agent string the browser reports, globally or per site.
Video Speed Controller
A browser extension that adds keyboard shortcuts to speed up, slow down and rewind HTML5 video.
Vimium
Vim-style keyboard shortcuts for navigating the web.
Vimium C
A keyboard navigation browser extension, derived from Vimium, with tab commands and an advanced omnibar.
Violentmonkey
Open-source userscript manager with cloud backup.
VisBug
Point-and-click editing tools for any live web page.
Vue DevTools
Inspector for Vue component trees, Pinia and Vuex state and routing.
W3Techs Site Info
A free web lookup that shows the CMS, programming language, web server and host a site uses.
Want My RSS
A Firefox extension that restores feed detection and in-browser RSS previews removed from Firefox.
Wappalyzer
Identifies the technologies a website is built with.
WAVE
A suite of web accessibility evaluation tools, available online and as browser extensions.
Wayback Machine
The Internet Archive's browser extension for saving pages and viewing archived copies of missing ones.
Web Archives
A browser extension that looks up archived and cached copies of the page you are viewing.
Web Developer
Toolbar of web development tools for inspecting and manipulating a page.
Web Scraper
A point-and-click browser extension for extracting structured data from websites, with a paid cloud service.
WebScrapBook
Captures web pages into an organised, annotatable local archive.
WhatRuns
A free browser extension that shows the technologies a website is built with.
Wordtune
An AI writing assistant that suggests rewrites, adjusts tone and proofreads English text.
Workona
Organises tabs into per-project workspaces that sync across devices.
ZeroOmega
A Manifest V3 fork of SwitchyOmega for managing and quickly switching between multiple browser proxies.
