Granted it is easy to lose track of time watching videos on YouTube when you have a reliable Internet connection. However, if you need to be offline but still want to enjoy playlists, user channels or a new artist, then rest assured that you can use tools such as Free YouTube to MP3 Converter and grab the audio from your favorite YouTube content.

Free YouTube Download is the most popular YouTube downloader application now, released in 2006 and updated on a regular basis. It lets you download and convert YouTube videos, so you can watch them whenever you want. Instructions (step by step)
Download and run the app

YT Downloader (ex YTD Youtube Downloader) is a simple and easy-to-use video download application. It helps you to download and convert videos from YouTube and hundreds of other video sites. YT Downloader increases your download speeds by up to 500%.

Mozilla Thunderbird is a fully featured, very functional, secure email client and RSS feed reader, created by Mozilla. It offers a pretty and streamlined interface to a very powerful email package and lets you handle mail efficiently and with style, and Thunderbird filters away junk mail too. Thunderbird is a sophisticated and very well integrated Bayesian spam filter knocks out most junk mail (after some training). Combine these two aspects of Thunderbird, and you get a sensible feature that automatically sanitizes (potentially dangerous) HTML code and turns off remote images for spam or anything else - worms, viruses - you classify as bad mail. Though not perfect, a scam sensor detects tactics commonly used to fool users.

Mozilla Firefox is a fast, secure and easy to use web browser that offers many advantages over other web browsers, such as the tabbed browsing and the ability to block pop-up windows. It lets you to view Web pages way faster, using less of your computer's memory. Take Firefox with you wherever you go. Synchronize your browsing across multiple devices. Forget clunky URLs - find the sites you love in seconds. Firefox has the most ways to customize your online experience specifically for the way you use the web. It is built with you in mind, so it's easy and instinctive to use even the first time you try it.

Bing Maps Downloader is a tool that can automatically download the Bing Maps images to your PC. It can download the small tiles and save them to your hard disk, including the normal maps, satellite maps, hybrid maps. After downloading, you can view the maps offline by its tool Maps Viewer, or you can combine the small images into one big map image. If you want to make a map of your city by yourself, it is very useful for you.

Burp Suite is a reliable and practical platform that provides you with a simple means of performing security testing of web applications. It gives you full control, letting you combine advanced manual techniques with various tools that seamlessly work together to support the entire testing process. The utility is easy-to-use and intuitive and does not require you to perform advanced actions in order to analyze, scan and exploit web apps. It is highly configurable and comes with useful features to assist experienced testers with their work.

Ant Download Manager (AntDM) is a quick download manager for any Internet file, that fully integrates with all popular browsers. AntDM allows to download free streaming video and audio from numerous web sites, supports P2P peer-to-peer protocol. AntDM supports downloading files from the most popular Premium Link Generators (Debrids).

This powerful Video Downloader supports downloading movies, music videos, playlist, sport videos, lectures and more from free video sharing website like Facebook, Dailymotion, eHow, and more than 100 video sharing sites. Besides downloading video in its original format, Allavsoft also features one-click to download as well as convert the downloaded video to popular video format like MP4, AVI, WMV, MOV, MPEG-1, MPEG-2, VOB, ASF, RMVB, DV, TS, Apple ProRes, WebM, FLV, OGV and etc.