YouTube no Buffer (no autoplay)
Prevents YouTube HTML5 and Flash players from auto-buffering (auto-playing) videos
860 users
Facebook Messenger as a Sidebar
Displays a sidebar that lets you talk to your friends using Facebook Messenger. Icon by Yuliia Osadcha (https://www.iconfinder.com/Juliia_Os)
853 users
Picture in Picture
Pop any video out of the page. One click, works everywhere with HTML5 video.
851 users
OKmusic - скачать музыку, видео одноклассники
OKmusic добавляет возможность скачивать музыку и видео с сайта Одноклассники бесплатно! С OKmusic музыка и видео из Одноклассников доступна всем.
846 users
Rainbow
Rainbow is a fun, simple, and secure Ethereum wallet that makes managing your assets a joy. Available in public Beta.
842 users
CustomCSS Injector
- Apply any CSS rules for any websites, including iframes. - Whitelist and Blacklist functionality - Apply CSS rules to specific URLs, Domains or Globally - Syntax highlighting & line numbers - Update without page refresh
841 users
TikTok Container
TikTok Container isolates your TikTok activity from the rest of your web activity in order to prevent ByteDance from tracking you outside of the TikTok ecosystem via third party cookies. Not made by Mozilla.
840 users
Outlook Web App Notifications
Add system notifications capability to OWA (Outlook Web App). No configuration needed. System notifications about new emails or reminders are shown, the fav icon and OWA tab title are also updated with the unread email/reminder count.
839 users
Aionda Mail (TrashMail): Disposable Temp Mail
Create free disposable email addresses with Aionda Mail (formerly TrashMail). Paste them directly into forms to protect yourself from spam. Zero-knowledge login and optional MITM protection included.
839 users
VxTwitter URL Converter
Converts twitter urls to vxtwitter when copied, for better Discord message embeds.
836 users
RingCentral
Seamlessly integrate your RingCentral communications and collaboration solution with Google Cloud to create a powerful business communications hub.
833 users
Videochat Extension - IP Locator for Omegle
IP Locator & more for Omegle-like randomized video chats: Omegle, ome.tv, Chatruletka. Previously known as Chatruletka Extension.
832 users
ModHeader ✨ by modheader.app ✅
ModHeader ✨ by modheader.app ✅ Modify change add edit update remove replace override HTTP request and response headers free.
831 users
Alternate Player for Twitch
Fork of 'Alternate Player for Twitch.tv' (twitch5@coolcmd) with english codebase, a navigation sidebar, an audio compressor, support for resolutions above 1080p and following raids.
824 users
Telegram in Sidebar
Multitask like a pro with Telegram in Firefox's sidebar. Chat while you browse, research while you message—all without juggling tabs or switching between apps.
821 users
YouTubeUtils
Play videos at the highest quality, dynamically resize video player, 4x playback speed, extra hotkeys to loop video and autoplay, and more! Works on mobile, desktop, and embed videos.
817 users
Process Feedback for Google Docs
Free writing process reports for Google Docs · Students prove their own work · Teachers see edits, AI use, and copy-paste events
817 users
Listy - La wishlist réinventée
Ajoutez vos envies cadeaux depuis n'importe quel site et partagez votre wishlist en quelques clics avec vos proches !
809 users
Youtube Dislike viewer
Resurrect the dislike count, enhance your experience with 'Youtube Dislikes Viewer' or more commonly known as 'Yt Dislikes Viewer'.
808 users
Foxen - FunPay Tools
форк проекта FunPay Tools, адаптированный для Firefox и дополненный новыми функциями.
807 users
Instagram Downloader – Photos & Carousel Saver
Download Instagram photos and carousel posts easily. Includes fast downloads, smart sidebar, and one-click saving.
806 users
