See which images include alt text or not on Twitter and TweetDeck. Get warned or prevented from posting images without alt text.

Track and share your listening and watching activity with Last.fm, Libre.fm, ListenBrainz and Trakt.tv

Extension for Tentlan.GameHelper.net

GameHelper.net was created to support players exchanging their combat and spy reports. The given browser extensions allow players to easily create und share their reports.

LinDuo is the best FREE way to learn 1000 English words in one month! Unique method of practice English listening and writting skills!

Share and spread the current URL to popular social networks. Support Facebook, Twitter, VK, and more.

Hide all updates/posts on Linkedin so you can stay productive without distractions from your feed.

Refresh DCInside gallery pages automatically, and make preview window when you right clicked the article.

Find the same video on other video platforms.

Shares link with Telegram user of your choice via Telegram app.

Scrobble music from vk.com to last.fm

Add a block button for a simple one-click blocking.

Removes the part of the URLs that is used to track you on the web

Adds a new panel to the developer tools. This panel shows a clear overview of all metatags

Set a default speed for video and audio.

This web-extension allows you to place calls from an Asterisk server when selecting a phone number on a webpage. You can also call a custom number from the Asterisk icon on the toolbar.

Allows you to view other players statuses within the Roblox website

The add-on inverts color of an image or color of any part of a page. Changes white color to black, for comfortable night time reading. Click on element second time to toggle inversion.

Instantly grab and share videos as gifs!

Just click our extension icon on toolbar to shorten the URL of current page with TinyURL.com url shortener service.

Easy to use PGP encryption and decryption.

A tool to convert website based books or list of pages to ePub format to read on your eReader/Kindle/etc.

Run a web based online android simulator that allows to play Arcade games

Προειδοποιεί για ελληνικές πηγές ενημέρωσης που έχουν υπάρξει αναξιόπιστες.

Displays a sidebar that lets manage your projects with Trello.

Recommended, support FireFox 45+. The Zoom Firefox Extension allows participants to schedule Zoom cloud meetings directly from Google Calendar. you can start an instant meeting or schedule a future meeting via a button.

Lets you view Instagram images without being logged in.

Displays the number of YouTube™ subscribers next to each comment.

provides an easy access to messenger.com and notifies you of all new messages (via badge icon text)

Telegram Web Messenger brings Telegram right into your Firefox Sidebar.

Multiple changes to the roblox site for a better user experience.