
Synchronizes video playback between multiple YouTube and Vimeo tabs. The playing video is paused when switched to another tab that also has a video to play.

Yank URL and title of current tab, format to a chosen markup language, and copy to clipboard

Shows your first and most recent visit to a page

Shows the average site or company rating in the browser

Simple button to open html file. Allow you to open local HTML page file on Android. You can choose multiply files at once. Add the extension page to your "Bookmarks" menu to open the page more convenient.

Share your web page with Helium on macOS. Helium can be found here: https://github.com/JadenGeller/Helium

Search provider for Rutracker, results sorted by the number of seeds.

Select a word or phrase in current browser tab and click the popup to get the translation

Opens a notification, when MOS is opened, that will open NGCC when clicked.

Removes Recomended Video and Discussions

Simplifies printing of sheet music at musescore.com.

LinkDown's Add-on for browsers, download the favourite videos you like within a click!

Reverse post order on Joyreactor to make it easier to read sets of posts, like comics.

A YouTube extension button for your instant video search.

Perfect if you don't use Imgur as Social Media. Redirects straight to the hosted image!

Goat is a private URL shortener makes it easy to share links with your team. Shorten your links to a single keyword and access them directly from your browser by typing "go mykeyword" or elsewhere with "https://ga.tc/mykeyword".

An editing writing mistakes tool over text-areas

Prevents the anti-selection scripts from web pages.

Click Counter.

Displays status of selected Mozilla mercurial trees in toolbar icon & popup.
Web Extension successor to https://addons.mozilla.org/en-US/firefox/addon/mozilla-tree-status/

Gives you four progress bars to check out your progress and see how your time is running out.

Limits the number of tabs that can be opened in a window

Disguises /r/subredditsimulator posts as real posts

Within the StackExchange network, this add-on allows you to copy code chunks to the clipboard by simply double clicking on them.
Tested on Stackoverflow, CrossValidated and GiS. Please let me know if you encounter any bug.

Allows you to change the font size on a webpage.

Turn any form field into a powerful calculator!

A simple Firefox extension to create a task in the Amazing Marvin productivity service from the current webpage.

Context menu option to delete all cookies from the present web page.

Set the over18 cookie automatically so you can skip Reddit's age gate.

Hide summaries/synopses on Netflix by blurring them until you hover your cursor over them. No more spoilers! The blur can also be toggled using the toolbar button when you want to see all summaries.