Firefox add-on with keyword - define

YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.

Ever wondered what a word meant but was too lazy to look it up? No more! This extension makes it effortless to find its definition

Instant definitions, translations, and search results for words and phrases you select or type

An easy-to-use tab reloader with custom reloading time settings for individual tabs

Simplifies the GitHub interface and adds many useful features.

Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.

With a simple mouse-over you can enlarge images and display images/videos from links.

Get instant dictionary definitions for any word or term that hits you anywhere on the web!

Stylish audio equalizer in toolbar popup.

Microsoft Teams, but better

Simplifies the Amazon Prime Video interface and adds useful features such as the ability to hide spoilers about unwatched episodes by hiding thumbnails and descriptions.

✨ Browser extension that adds useful features and tweaks a few stuff on Hacker News to make the experience better... without changing the look and feel.

Improves YouTube playback performance by using your desired codecs.

Automatically redirects to user-defined urls on certain pages

FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.

This simple extension helps you define the words in fewer clicks and no typing. Steps: 1 - Highlight the text. 2 - Right click the highlighted text. 3 - Choose one of two dictionaries websites (dictionary.com or urbandictionary.com)

Improves Bitbucket's user interface

Defending against Font fingerprinting by reporting a fake value.

When confronted with ads or the notorious anti adblock pop-up, click on the extension, and you're done! No Adblock required! It effectively blocks ads and defeats YouTube's anti-adblock measures permanently.

Defending against WebGL fingerprinting by reporting a fake value.

User-defined Enhancements for IMDb

Lets you replace text in web pages. You can define a substitution list and apply it automatically or at your own discretion, or make individual substitutions. You can use this as a filter, or just for fun :)

Ethereum gas prices extension with dark and light modes and 7-day historical data.

Deletes donation notices of Wikipedia.

Save images to different folders in one click! You can define many folder names and save there in one click!