Automatically unload tabs

Add downloads directly from Firefox browser to jDM.

Encrypt/Decrypt any file with just one click inside your browser!

Запрос политики (RequestPolicy) для Quantum. Запретите вашему браузеру подключаться к сторонним ресурсам без согласия пользователя.

An SEO add on that shows Google cache dates, indexed pages, various meta tags, canonical tags, nofollow tags & much more. Displays alerts for detected issues. No logging in required and all the data is shown within the tool.

ZipeZip is a big file transfer service with a simple malware scanner, which enables you to send files with size up to 2GB.
The file you uploaded will be kept 14 days.
Files uploaded to ZipeZip’s server are deleted automatically 14 days afte

Keep your tabs ordered by their most recent usage.

Did someone say cookie consent dialogs? 😋

Undo a closed Tab(s) or create a duplicate of your current Tab

Go to the tab that has already been opened.

Set your default YouTube video quality to a low definition to save resources. Most videos don't need HD anyway

Saves the window tabs so that they could be loaded later. This extension aims to save the memory of the system by closing windows which are not required at present and can be needed later.

Stop loading images and other media by default like imglikeopera

Makes webpages load faster by allowing them to load before the external CSS files are loaded.

Simple Tool Shows BSR & Listing Date On Amazon By Mohamed Ali.
Working on (search page only) Amazon .com, co.uk, .de
If you can't see the data in search page:
***JUST REFRESH THE PAGE***
Finally, Please donate us to keep this tool free & updated.

Adds a menu item to your right-click menu that simulates pressing Enter/Return.

Switch scale video to real resolution. Show current video playback rate and video resolution in OSD. Hide playback controls in fullsceen. Shortcut "Alt+Y" open YouTube in new tab (>=48 ver.). View Video Thumbnails (>=59 ver).

Disables anti-features from Reddit's mobile site

Create zip files via an easy-to-use UI right in your browser!

A suite of famous mathematical libraries for JavaScript

BlockGuard protects you against SCAM Sites in the Blockchain Area and Cryptospace. If you try to reach a suspicious site, we show you a warning, and you can not enter the site. The database grows each day, and we improve the add-ons.

This Add-on will filter all HTTP requests (including requests for javascript files, images etc) based on the list of regular expressions the user provides.

The addon works off of a Deny-list configured via the Options/Settings page for the Addon

Basically this add-on helps you to follow the Pomodoro method, start the timer and do you work on the net for 25 Minutes, after it passes an auditory icon will occur to allow you to know your session is complete. And will start the relax period.

AUTOPLAY & SPACEBAR TWEAK DOES NOT WORK WITH UPCOMING YOUTUBE ALL-WHITE REDESIGN YET. IT WORKS WITH THE CURRENT DESIGN.

Disables YouTube Autoplay. Spacebar pauses the video.
Control video speeds:
[ = slower
] = faster
= default

A fast extension to manage , switch proxies
-It supports HTTP, HTTPS, SOCKS, SOCKS5 proxies .
-Import proxy list from any website
-Check your public IP address
-Drag and drop proxies to arrange them
-Set costume icons for your proxies

This extension is designed for a competitive programmer to save time while copying the input of a problem.

BitRef will help you view the current balance of any Bitcoin address. Just type: "btc [space or tab] bitcoin_address" in Firefox's address bar. This is the easiest and fastest way to check balance of any Bitcoin address.

No longer supports upgrade . Please see https://addons.mozilla.org/ru/firefox/addon/boost-youtube/.
Add playback speed indicator on Youtube video.

Adds an image gallery to YouTube website it lets you view and save YouTube High Resolution Images.

switch between webpage and google web cache.