Download YouTube videos in all available formats and extract the original audio files
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive.is, Google, Bing, Yandex, Gigablast, WebCite, Sogou, Memento, Naver and Yahoo Japan.
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
The best way to see the weather right in your browser. Easier than looking outside!
A lightweight and accurate weather extension for the entire globe based on Google Technology
This extension shows in your toolbar the current weather and the degree in Celsius, when you click is possible see more details about the weather on your city. In addition to being able to view the forecast for the next 24 and 48 hours.
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
Show tabs like a tree.
Automatically refresh tabs based on custom time intervals
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
Google Keep Notes brings Google Keep right into your Firefox Sidebar.
Simple sticky notes utility which provides facility to make small notes of any thing.
Stylish timer combined with stopwatch and alarm for your browser.
Adds a text box to a toolbar button for taking notes