Add Subtitles
Firefox extension that let you add subtitles to any <video> element.
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Audio/Video Speed Up
Speeds up playback. Affects all html5 videos and audio. | Speed up: Ctrl+Shift+U | Speed down: Ctrl+Shift+Y
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RevEye Reverse Image Search
Firefox port of the Chrome extension RevEye Perform a search by image. Choose between the image search engines Google, Bing, Yandex and TinEye
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Video Quality Settings for YouTube (HD/4K)
Watch YouTube in your preferred video quality, such as 720p, 1080p, 1440p and 2160p.
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最新图片下载器 - 图片批量下载工具
Browse and download images on the web 万能图片下载助手，一个超简单好用的图片下载工具、批量下载助手。可以找出当前页面的所有图片，并按分辨率、格式、链接等条件筛选图片，进行一键下载。
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Previews (For TTV & YT)
Live previews when hovering over streams on Twitch & YouTube | A bunch of quality of life improvements for TTV & YT
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AI Subtitles & Immersive Translate - Trancy
Trancy provides bilingual subtitle for platforms like YouTube, Netflix, Disney+... as well as AI translator for websites.
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Audio Output Selector
Allows you to change the audio output device of <audio> and <video> elements. Requires media.setsinkid.enabled set to true in about:config!
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YouTube Converter
Our YouTube Converter allows you to convert your favourite YouTube videos to MP3 or MP4 files, and download them for free.
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Twitter & X Video Downloader
Download Twitter (X) Videos effortlessly with our X Downloader Extension. Just one click to convert video to MP4 or MP3.
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Watchmarker for Youtube
Automatically mark videos on Youtube that you have already watched.
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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.
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Loader.to all-in-1 helper / youtube downloader
The Loader.to Downloader Extension will help you to download videos from YouTube, Twitter, Pinterest, Soundcloud & Twitch! Every Download is just one click away!
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Remove YouTube End Cards & End Screen Videos
Remove YouTube end cards and end screen recommendation videowall.
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YouTube Repeat Button
Adds a repeat button to the HTML5 player to loop over a single track after 1 second delay
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View Image Info Reborn
Display info for the current image in a new window, new tab, or overlaid on the image. Convert WEBP images to PNG or JPEG. Send an image URL to TinEye for reverse image search. "View image..." in same tab? Check the screenshots for all the options.
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