Most importantly, from a user perspective, Jetpack will allow new features to be added to the browser without a restart or compatibility issues, resulting in little to no disruption to the online experience.
As with all Mozilla Labs initiatives, Jetpack is an open source project and everyone is welcome to participate in its design, development & experimentation.
You probably know by now how sites like MegaUpload, RapidShare, Sharebee or Zshare work and also how much time you are forced to waste with every download link – they generally make you wait around 45-60 seconds and although that may seem like very little time it can actually become very annoying when you’re actually downloading more than a few files – there’s just too little time to do anything else but too much time to not get bored.
SkipScreen is a free Firefox add-on that lets you skip all the clicking and waiting on sites like RapidShare, Zshare, MegaUpload, and Sharebee. Your downloads start instantly.
ReminderFox is an extension that displays and manages lists of date-based reminders and ToDo’s. ReminderFox does not seek to be a full-fledged calendar system. In fact, the target audience is anybody that simply wants to remember important dates (birthdays, anniversaries, etc) without having to run a whole calendar application.
The easy way to download Web videos from hundreds of YouTube-like sites. This works also for audio and picture galleries.
DownloadHelper is a tool for web content extraction. Its purpose is to capture video and image files from many sites. Just surf the Web as you are used to, when DownloadHelper detects it can do something for you, the icon gets animated and a menu allows you to download files by simply clicking an item For instance, if you go to a YouTube page, you’ll be able to download the video directly on your file system. It also works with MySpace, Google videos, DailyMotion, Porkolt, iFilm, DreamHost and others. When you are on a page containing links to images or movies, you can download some or all of them at once. Moving the mouse over the items in the menu will highlights the links directly in the page to make sure they are the ones you want to pick up. DownloadHelper also allows you to download files one by one, so that you keep bandwidth to surf for other stuff to download.