Firefox Extensions to Lightweight

Discover Firefox Extensions to Lightweight.

Designed to consume minimal system resources, making it fast and efficient on various computer configurations.

Best Firefox Extensions to Lightweight

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NetVideoHunter

NetVideoHunter

Open Source

<p>NetVideoHunter is a versatile music and video downloader available primarily as a browser extension for Firefox, Chrome, and Edge. It specializes in capturing media from popular platforms like YouTube, Vimeo, Metacafe, and Facebook, offering a convenient way to save online videos and audio for offline access.</p>

Seamless integration with popular web browsers.
Built-in player
Video & Movies Web Browsers
Grabilla

Grabilla

Free Personal

Grabilla is a comprehensive screen capture and recording tool for Windows. It allows users to quickly take screenshots, record desktop activity as videos or animated GIFs, and effortlessly share the captured content to the web, FTP, or clipboard. With built-in editing features and automatic upload capabilities, Grabilla streamlines the entire process from capture to sharing.

Easy to use interface for quick captures and recordings.
Record desktop activity
Photos & Graphics Video & Movies
Supernet

Supernet

Free

Supernet is a free, security-focused VPN client designed to enhance online privacy and bypass censorship. It utilizes robust encryption and offers features like IP masking and application blocking to secure user activity.

Focus on security and privacy features like AES256 encryption and IP masking.
Security & Privacy
Security & Privacy
AdFender

AdFender

Free

AdFender is a comprehensive ad-blocking and privacy tool designed to enhance your web browsing experience by removing disruptive advertisements and protecting your online identity. It works across multiple browsers and offers advanced features like custom DNS settings and limited parental controls.

Blocks ads system-wide across multiple browsers and applications.
Block ads
Web Browsers
DeeperWeb

DeeperWeb

Open Source

DeeperWeb is a privacy-focused metasearch engine that enhances Google search results using tag cloud and topic map techniques for improved navigation and discovery. It prioritizes user privacy by not tracking searches.

Unique visual navigation using tag clouds.
Search engine
Online Services
Gyazo

Gyazo

Freemium

Gyazo is a versatile screenshot and screen recording tool that simplifies capturing, sharing, and managing visual content. It offers instant uploads, easy annotation, and integrates seamlessly with various platforms.

Fast and easy screen capture with instant upload.
Capture Screen / Take screenshots
Photos & Graphics
EPUBReader

EPUBReader

Free

EPUBReader is a lightweight and efficient browser extension that allows users to open and read EPUB e-books directly within their web browser. It provides a simple and intuitive reading experience without requiring external software.

Reads EPUB files directly in the browser.
Export to PDF
News & Books
Tampermonkey

Tampermonkey

Free Personal

Tampermonkey is a powerful and popular browser extension that functions as a userscript manager. It allows users to customize and enhance their web browsing experience by running small JavaScript programs called userscripts on specific websites.

Extensive customization of websites.
Scripting
Development Web Browsers
Adblock Edge

Adblock Edge

Open Source

Adblock Edge was a browser extension designed to block advertisements within web pages. Primarily focused on Microsoft Edge (formerly Project Spartan), it aimed to provide users with a cleaner, faster browsing experience by preventing the loading of various ad formats.

Blocks various ad formats effectively.
Firefox extension
Web Browsers
µMatrix

µMatrix

Open Source

uMatrix is a browser extension that functions as a powerful point-and-click matrix-based firewall and privacy-enhancement tool. It provides granular control over what resources are loaded by your browser, allowing users to block or allow requests based on type, origin, and destination, helping to protect privacy and improve browsing security.

Provides granular control over network requests via a visual matrix interface.
Browser based app
Security & Privacy Web Browsers
SQLite Manager

SQLite Manager

Open Source

SQLite Manager is a robust database management extension designed for SQLite databases. It provides a user-friendly interface combined with efficient performance for a wide range of database operations, making it ideal for developers and database administrators.

Easy to use interface
Add-ons
Office & Productivity
Disconnect

Disconnect

Open Source

Disconnect is a robust tool designed to enhance online privacy by visualizing and blocking the invisible tracking technologies that follow your browsing and search history across the web. Available as a browser extension and other privacy-focused solutions, it aims to significantly reduce the amount of personal data collected by third-party trackers.

Effectively blocks online trackers.
Google Chrome extension
Security & Privacy Web Browsers
Privacy Badger

Privacy Badger

Open Source

Privacy Badger is a free browser extension developed by the Electronic Frontier Foundation (EFF) that automatically learns to block invisible trackers.

Effectively blocks invisible trackers using a unique heuristic approach.
Content Filtering
Security & Privacy
Firefox PDF Viewer (PDF.js)

Firefox PDF Viewer (PDF.js) is an open-source, web standards-based PDF viewer embedded directly within the Firefox browser. It allows users to view PDF documents seamlessly without the need for external software or plugins, enhancing browser-based document handling and accessibility.

Seamlessly integrated into Firefox
Browser integration
Office & Productivity Web Browsers
Lightshot

Lightshot

Free

Lightshot is a lightweight and easy-to-use screenshot tool designed for speed and flexibility. It allows users to quickly capture, edit, and share screenshots with minimal effort. Ideal for fast communication and visual collaboration.

Extremely fast screenshot capture workflow.
Automatic upload
Photos & Graphics Web Browsers
uBlock

uBlock

Open Source

uBlock is a powerful, yet lightweight, content blocker available as a browser extension for various platforms. It effectively blocks ads, trackers, and malware sites, enhancing privacy and improving browsing speed. Although currently discontinued, its effectiveness and open-source nature made it a popular choice for users seeking a cleaner web experience.

Highly effective at blocking ads and trackers.
Built-in Ad-blocker
Security & Privacy Web Browsers
Ghostery

Ghostery

Free

Ghostery is a powerful privacy browser and extension that blocks ads, stops trackers, and enhances your online anonymity. It provides users with greater control over their digital footprint and browsing speed.

Effectively blocks a wide range of trackers and ads.
No Tracking
Security & Privacy Web Browsers
Greasemonkey

Greasemonkey

Open Source

Greasemonkey is a highly influential and versatile Firefox extension that empowers users to personalize and enhance their web browsing experience by installing custom scripts. These scripts can modify web page content, alter layouts, add new functionalities, and automate tasks, effectively customizing how users interact with websites.

Enables deep customization of web pages.
Firefox extension
Development Web Browsers
Prism

Prism

Open Source

Prism was a discontinued open-source application developed by Mozilla, designed to integrate web applications into the desktop experience by removing the standard browser interface and providing a dedicated window for each 'site-specific browser'.

Provides a focused, distraction-free environment for web applications.
Place websites on desktop
Web Browsers
Disconnect Search

Disconnect Search

Open Source

Disconnect Search is a privacy-focused search engine and browser extension that prevents major search engines from tracking your searches and location. It routes your searches anonymously through Disconnect's servers, protecting your privacy while allowing you to utilize popular search providers like Google, Bing, and DuckDuckGo.

Effectively anonymizes search queries with major engines.
Google Chrome extension
Online Services Web Browsers