If you're a developer trying to get a handle on all the new features in Firefox 3, this is the perfect place to start. This article provides a list of the new articles covering features added to Firefox 3. While it doesn't necessarily cover every little change, it will help you learn about the major improvements.
BlockSite is an extension, which automatically blocks websites of your choice. Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.
This add-on provides the ability to add single or multiple links to the browser history, making them appear visited, without having to actually visit them. It also allows them to be removed from the history.
demo:rtf Cross-Browser Rich Text Editor (RTE) (demo)
The cross-browser rich-text editor (RTE) is based on the designMode() functionality introduced in Internet Explorer 5, and implemented in Mozilla 1.3+ using the Mozilla Rich Text Editing API.
Free alphabetical order tool makes alphabetizing text easy. Use this alphabetizer tool to sort blocks of text, word lists, CSVs, and other similar text into alphabetical order.