With this extension you can enjoy a full size theatre mode on youtube.

The Whois Checker! IP Checker extension identifies your IP address with just one click, please note it DOES NOT hide or change your IP address. This tool is to be used to check your current IP address.

Improve your privacy and browse safer with seven tweaks.

IMDb TV Series Chart

Allows changing to a different tab by pressing Ctrl and a number at the same time.

Primarily useful on Linux, where the default is Alt+number.

Partial replacement for my Windows Shortcuts extension for Firefox 55 and above.

Copy tabs as hyperlinks or as plaintext URLs, similar to MS Edge, but actually even better since this addons supports copying mutliple tabs at the same time.

CanvasPlus: Power up your learning with color themes, navigation shortcuts, and improved performance.

The easiest way to lookup current weather in your area, plus, get badge notifications

Easily block (nullify) undesired WebAPI(s) and protect your privacy.

Universal manager for Firefox. Manage your tabs, bookmarks, history and clipboard using powerful filtering and sorting capability. Easily select multiple items and handle them at once.
Formerly named as At Your Command.

Open With Opera sends pages, links, tabs and images from Mozilla Firefox to Opera.

Make a new tab your own with custom background color, wallpapers, redirection, and other tweaks.

Automatically switches to grid view when an Imgur album or gallery is opened.

Fact checking resource to help navigate the internet. Provides contextual information via the toolbar giving a brief explanation of a news/organization and what its bias is.

A keyboard-navigable Input panel that can search unicode characters by character name, code block and general category. Alt+U to open and close the panel. Alt+Shift+L to toggle the latex shorthand input mode in text areas.

This extension creates a qrcode for the current url.

Improves readability and automatically adds images and useful information to VNDB visual novel lists.

Automatically scrolls down any webpage for you. Either you are reading some lyrics while playing an instrument, reading a book or an article, or just feeling too lazy to scroll down with your mouse, Page Scroller is the right tool for you!

Adds a "Go Up" button for Firefox

a browser extension to translate words selected in page

Adds a page action icon to the URL bar when a Youtube video is being watched. Click the icon to show/hide the video panel, so only the audio will be heard.

An easy-to-use and lite 2048 Game

Scrolls instantly to top.

Disables context menu everywhere, replacing the action with a single left click. Useful for kiosks.

Next tab only a click away!

IMDB to torrents adds links to popular torrent sites to search for a movie from the www.imdb.com site.
Use at your own risk and responsibility. Piracy is wrong.

Prevents others from seeing when you're typing on Discord.

This addon places a fuzna button below youtube videos which triggers a mp3 conversion of the current video when clicked. It's simple and extremely fast!

Link Warcraft logs to TBCC threat graph

TelNowEdge ClicktoCall adds link to dial on any Web Page that contains a phone number.