Mozilla Firefox 2.0

Firefox 2 introduces a vast array of new features and capabilities:

Microsummaries
Microsummaries are regularly-updated succinct compilations of the most important information on web pages. Site and third-party developers can both provide them, and users can choose to display microsummaries instead of static titles when they bookmark pages with microsummaries.

Creating a Microsummary
A tutorial on creating a microsummary generator.

Creating MozSearch plugins
Firefox 2 supports MozSearch, a search plugin format based on OpenSearch.

Supporting search suggestions in search plugins
How to make your MozSearch plugin support search suggestions, which appear in a drop-down list while typing in the search bar.

New in JavaScript 1.7
Firefox 2 supports JavaScript 1.7, which includes new features including let, destructuring assignment, generators and iterators, and array comprehensions.

WHATWG Client-side session and persistent storage
Client-side session and persistent storage allows web applications to store structured data on the client side.

SVG in Firefox
Firefox 2 improves Scalable Vector Graphics (SVG) support, implementing the element and adding support for some attributes not previously supported.

Controlling spell checking in HTML forms
Firefox 2 includes support for inline spell checking in text areas and text fields. This article describes how to write your HTML to enable and disable spell checking on individual form elements.