Media URL Timestamper (resume playback)
Remember audio/video playback position for later resuming without cookies, storage or logging in by automatically timestamping the address. Compatible with Youtube, SoundCloud, Invidious and others.
262 użytkowników
Streaming LAN Cast
Cast the current tab's video to a DLNA or Google Cast device on your local network.
261 użytkowników
Video Speed Controller
Easily control HTML5 video playback speed on any website, with an intuitive interface and features tailored to both desktop and mobile versions of Firefox.
259 użytkowników
Video Looper
An extension for looping videos across the internet. (It supports most common video sources; Such as, WEBM, MP4, etc...). That means you'll be able to use this extension in websites like YouTube or Twitter.
258 użytkowników
LagSync - Bluetooth Audio Fix
Fix audio and video delay caused by Bluetooth latency. Sync your sound perfectly on YouTube, Netflix, and HTML5 video to get perfect lip-sync.
151 użytkowników
800% Sound Volume
Boost, reduce, or mute audio on any website up to 800% volume, with per-site memory and a clean simple interface.
149 użytkowników
SoundTuner
Extension to manipulate background audio. Can lower/increase volume, add pan and mono per tab. Can also save background sounds per website for future visits.
131 użytkowników
Capo – Pitch & Speed Changer
Change the pitch, key, and speed of any audio or video — on YouTube, Spotify, SoundCloud & more. Transpose, slow down, and loop.
124 użytkowników
ProBlocker: Adblocker dla YouTube™
Szybki, darmowy adblocker dla YouTube™ i stron. Blokuj reklamy wideo, banery i trackery. Zgodny z MV3 2026.
119 użytkowników
Summarize AI for Firefox
🌟 Summary: Summarize AI is an innovative tool designed to simplify your online reading experience. It intelligently summarizes articles and web pages
114 użytkowników
Shortkeys-Custom Shortcuts
Map keyboard keys to click buttons on specific websites. Set per-site keybindings that trigger element clicks.
114 użytkowników
Video Speed And Volume With Mouse Wheel
Control video and audio playback speed and volume with the mouse wheel
95 użytkowników
SpeedMaster: Custom Playback Speed for Videos
This addon allows you to break free from traditional speed limits on any video website. With the ability to set customised playback speeds without constraints. SpeedMaster also lets you add quick buttons for instant access to your preferred speeds.
92 użytkowników
Video Controller
Control your online videos. Send videos to VLC or play in a new tab with 1 click. Avoid ad's and resource hungry websites. Watch in full screen, even if the originating website doesn't allow it. Watch multiple videos from multiple sites at once.
77 użytkowników
YouTube Video Downloader
Download from YouTube, Vimeo, TikTok, Instagram & more in 4K! MP4, MP3, FLAC, AAC & 8+ formats. Playlists, batch downloads, dubbed languages, 320kbps audio — server-side, zero device load!
76 użytkowników
9xbuddy: Video Download Helper
The downloader that actually works. Trusted since 2014. Save media from 1000+ sites with unlimited downloads and lightning-fast speeds. What you download is your business, not ours.
73 użytkowników
Shaparak Verifier
Verify Shaparak gateways and protect users against phishing attacks.
70 użytkowników
Aurora Player
Open the current video in the Aurora Player app for stunning glow effects.
65 użytkowników
YouTube Video Downloader – Vidaraa
Download YouTube videos in 4K, HD & all resolutions. Fast, local & private — no account needed. Supports dubbed videos & all formats. Compatible with all players. — Vidaraa
57 użytkowników
Sound Booster - GhostVolume
Boost audio up to 600% on any tab. Zero data collection, zero tracking. Uses only activeTab permission — code is injected only when you click. Built-in Safe Mode prevents speaker distortion. Lightweight, open source, and fully private.
56 użytkowników
