JSON Formatter
Formats JSON automatically! Open Source, Available with 60+ Themes, Syntax Highlighting, automatically linkifies links and more.
3,437 users
Definer: Word Translator, Ask AI, Popup Dictionary
Use AI translator and dictionary online with AI search to spell check sentences & learn new words
3,160 users
Youtube to MP3 Converter & Downloader
Firefox extension to convert and download Youtube videos for free in MP3 format. This addon includes a button on any YouTube View Page and allows you to convert the YouTube Video to a mp3 file with just one click.
2,947 users
Modern for Wikipedia
A redesigned user interface for Wikipedia. Enhance your Wikipedia experience with a beautiful, clean, modern design that's fully customizable.
2,916 users
TTV AB - Lightweight Twitch.tv Ad Blocker
Block ads on Twitch.tv live streams and VODs. No prerolls, midrolls, purple screens, or playback interruptions.
2,582 users
AddToAny: Share Anywhere
Share to Facebook, Mastodon, WhatsApp, Telegram, LinkedIn, Teams, Threads, email, and any other sharing or saving service quickly and easily with one share button.
2,556 users
LiteTube: Fix YouTube Lag & Adblock Detection
Fix YouTube Lag / Adblock Detection on Firefox issue by utilizing the lightweight Mobile API Lightweight YouTube (m.) without ads. Background Play, AdBlock, SponsorBlock, and Max Quality in one.
2,355 users
Script Blocker Ultimate (NoScript, Disable JS)
Best Script Blocker for Firefox. (Best in Performance, This addon does NOT track user activities same as others)
2,299 users
Roblox Server Finder
A server finder that attempts to find a server with a specified amount of players
1,915 users
Download Youtube Subtitles and Captions
Youtube subtitle downloader button below YouTube videos. This button takes you to the list of subtitles of the corresponding video when clicked!
1,750 users
ContextSearch web-ext
Select text and search from the context menu or a tiled popup using any of your installed search engines. Add new search engines with a right-click, edit favicons and query strings. POST compatible, simple UI, highly configurable. For FF 57+
1,722 users
Enable Selection and Copy
Force enable text selection and copy. (mod by Gary) This is modded from another well-known addon and makes it function on local files also. Nothing else changed.
1,709 users
Google Dark Theme
A modern dark theme for Google Search, Images, Translate. Permissions found in manifest.json in the GitHub repository.
1,634 users
Website IP
Simple add-on that displays the current website IP address without a third party service. Converting the current tabs domain name to IPv4 & IPv6 via DNS lookup.
1,627 users
Enable Copy Extension
Unlock copying on any website AND extract text from images! Copy text from protected pages, scan Google Docs, PDFs, and screenshots with OCR. Features Standard/Force modes and whitelist.
1,575 users
