Extensions by Name


MDN Web API Referee

Create MDN API Reference Skeletons by visiting raw WebIDL files (e.g. at https://mxr.mozilla.org/mozilla-central/source/dom/webidl/ or https://gist.github.com/search?l=webidl&q=.webidl)

Not yet rated
12 users

MDN: Save With Comment Hotkey

A helpful add-on for MDN contributors which instantly scrolls to and focuses the revision comment edit box so you can comment and save your changes quickly and conveniently.

Rated 4 out of 5 stars (1)
3 users

MDWS Process Server Toolbar Requires Restart

This is the next generation of service.

Not yet rated
1 user

me Requires Restart

Login to application Kik Messenger for PC & Mac Online, Kik Desktop Online.

Not yet rated
4 users

Me gusta Mall

a basic add-on

Rated 2 out of 5 stars (3)
1 user

Me Hincha

Ahora también podés decir todo lo que te hincha en Facebook!
Descargá tu botón ME HINCHA para utilizar en Facebook y contale a todos tus amigos que te hincha.
Únicamente disponible para Mozilla Firefox.

Rated 1 out of 5 stars (1)
1 user

MeasureIt Requires Restart

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Rated 4 out of 5 stars (362)
106,246 users


Measurer allows to measure dimensions of the objects on html page. Press down shift for multiple measurements.

Rated 4 out of 5 stars (7)
1,911 users

MechHero map tools Compatible with Firefox 57+

Display map pnel grid lines and resource field values (on empty ground only!)

Not yet rated
13 users


A tool to quickly look up information about Medabots.

Not yet rated
0 users

Media Converter Requires Restart

Download and convert online videos directly from your browser without the need for special software.
This is a video downloader and video converter in one simple extension.

Rated 4 out of 5 stars (134)
13,005 users

Media Converter and Muxer

Media Converter and Muxer is an easy to use video and audio converter and muxer.

Rated 3 out of 5 stars (34)
75,974 users

Media Converter and Muxer (WebExtension) Compatible with Firefox 57+

Easy to use video and audio converter and muxer written in WebExtension built on top of the well-known FFmpeg converter

Rated 4 out of 5 stars (2)
1,014 users

Media Key Support

Add support for global media keys

Rated 1 out of 5 stars (1)
33 users

Media Keys

Lets you control various media sites using the media keys on your keyboard without having the Firefox window active.

Supported Sites: youtube, pandora, spotify, bandcamp, google play, yandex, soundcloud, tidalhifi, deezer, plex, vk and more.

Rated 5 out of 5 stars (75)
3,094 users

Media Loop

Menu item to control audio/video loop.

Rated 4 out of 5 stars (7)
1,172 users

media menu

simply media popup and loop

Not yet rated
3 users

Media Player for YouTube™ Compatible with Firefox 57+

Media Player is an open-source project that aims to enhance the overall user experience by providing the end user with more control in what the playback process is concerned.

Rated 4 out of 5 stars (14)
11,056 users

Media Reload Compatible with Firefox 57+

Refresh video and audio.
2 options: -Context menu
-Hold control, or another key of choice, and seek video/audio to reset its buffer.

Mac users should probably rebind the key in the preferences.

Not yet rated
8 users

Media Shelf Compatible with Firefox 57+

Save it now. Enjoy it later. Share with friends.

Not yet rated
10 users