Add extensions, get work done

Adds a button under SoundCloud tracks for instant download as mp3 with metadata!

This fork of the "h264ify" extension restores functionality for videos embedded in third-party sites.

Google Cache lets you visit retrieve the web page from Google Web Cache when the site is offline.

Watch videos together at the same time!

Music Volume EQ - Sound Bass Booster & Equalizer. Improve the sound! The best audio channel

Rotate the entire page or rotate fullscreen view to best fit the device aspect ratio

SuperStop

SuperStop adds a Shift+Esc shortcut and toolbar button that stops background requests and animations even when the Firefox Stop button is disabled.

View exIF allows you to view metadata contained in .jpg and .tiff images from your Firefox browser.

Google Reverse Image Search The only add-on in this category capable of searching local files from the computer

Popup Youtube/Twitch video to standalone window.

Play all kinds of MIDI files in browser.

Captures and translates subtitles using Google Translate directly from a webpage for online video services such as Netflix, HBO (free episodes only), YouTube and Amazon Video. Other similar HTML-based video and translate services can be configured.

Re-implements Google™ image search feature to filter images by megapixels.

Make the YouTube player fit all of your screen when opening fullscreen mode. NOTE: After installing, click on the extension and grant the authorization to access YouTube

Watch YouTube™ Videos Only in Flash Player

A simple application for the lazy, to not have to click the "Continue Watching" button in Netflix. It will remove the UI Permanently, so you can continue your binge session. Versions & Updates: 1.2.1 : Firefox Release

A minimal addon to fix Netflix for Linux users. Fixes a problem on Netflix for Linux users where Netflix pops up with a help page stating mimimum requirements when they try to watch a video.

Message Seen Disable for Facebook™ lets you turn off Facebook™'s Message Seen feature automatically for your account. You can still use Seen feature for others.

Automatically Repeats Your Favourite YouTube video.

Show IMDB, Rotten Tomatoes and Metacritic ratings on Netflix, Amazon Prime Video, Disney Plus, HBO Max, Hulu, AppleTV and PeacockTV

Play HLS and DASH video urls (m3u8/mpd) in your browser

Quick way to start Free Snipping Tool right from Mozilla