Always active Window (Always Visible)
Pretend that all browser windows are active by spoofing the visibility state event
3,318 users
4,189 users
Steam URL Opener
Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).
4,782 users
Media Converter and Muxer - Audio Tools
Easy to use video and audio converter and muxer written in WebExtension built on top of the well-known FFmpeg converter
25,284 users
Media Helper for Instagram
Easily download Instagram pictures and videos.
15,274 users
801 users
2,357 users
YouTube Flash Video Player
YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.
26,743 users
2,193 users
Archive Page
Archive webpage with archive.today
9,830 users
City Scapes
A beautiful new tab for your Firefox browser with a City Scapes theme.
1,169 users
4,277 users
Katalon Recorder | Automated Selenium Tests Genera
Selenium IDE alternative to record and export Selenium scripts. Provides reports & screenshots. Fast & open-sourced.
3,117 users
1,796 users
Don't "Accept" image/webp
This extension removes image/webp and/or image/avif from the list of formats Firefox tells sites that it accepts. That discourages many servers from replacing JPEG and PNG images with WebP/AVIF. (But some may send them anyway; they aren't blocked.)
23,429 users
Temp Mail - Disposable Temporary Email
Temporary disposable email address. Protect your email from spam, bots and phishing with Temp-Mail.
7,935 users
2,401 users
Volume Booster for YouTube™
Increase the volume of the YouTube™ player twice, resembling the VLC player
3,517 users
会译:对照式翻译&沉浸式AI翻译
为用户提供更好用的 AI 翻译和更流畅的阅读体验
592 users
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
4,999 users
Youtube™ Downloader
This extension allows you to download videos directly from youtube.
6,323 users
Side View
Open a mobile view of a page in the sidebar
14,407 users
The m3u8 Stream Detector
Formerly known as The Stream Detector Ver.2.12 Formerly known as HLS Stream Detector. Detects M3U8/MPD/F4M/ISM playlists and VTT subtitles used by HLS/DASH/HDS/MSS streams. Assembles readymade youtube-dl/FFmpeg/Streamlink/hlsdl commands.
3,278 users
Libby Download
Libby Downloader is a Firefox extension that allows for download and transfer of audiobooks from the Libby website to unsupported devices.
1,435 users
Snowflake
Help people in censored countries access the Internet without restrictions. Once you install and enable the extension, wait for the snowflake icon to turn green, this means a censored user is connecting through your extension to access the Internet!
16,862 users