The following sections describe new features in version 3.0 of the Firefox web browser and the Gecko 1.9 platform.
The Gecko 1.9 platform now supports IAccessible2. IAccessible2 is an extension to Microsoft's Active Accessibility, allowing for more components and attributes to be exposed to assistive technologies. Once screen readers and other assistive technologies start using IAccessible2, the following will be made possible:
The Gecko 1.9 platform now supports the Gnome Accessibility Toolkit/Assistive Technology Service Provider Interface (AT-SPI). This enables the next versions of Firefox, Thunderbird, Sunbird and SeaMonkey that build on Gecko 1.9 to be accessible on the Gnome Desktop under Linux. Screen readers such as Orca, or alternative input software like Jambu can now use Firefox to give access to even more users. But any application such as the Songbird media player will gain full accessibility on Linux once the project is moved to the Mozilla/Gecko 1.9 platform. If developers adhere to the XUL accessibility guidelines, accessibility will be available instantaneously.
The Page Zoom feature of Firefox has been enhanced to also zoom images. For more information, see Font size and zoom - increase the size of web pages.
The "Report a broken website" tool that can be found on the Help menu has been enhanced with the ability to report a website that is not accessible. A "site that is not accessible" is a site that, for example, misses alternative text for images, does not offer proper zooming behavior etc. Reporting these sites through the "Report a broken website" tool will help authors of such pages to evaluate how many users in need of accessibility visit their sites and are confronted with disadvantages resulting from their inaccessibility. This may provide such authors with needed data to relaunch their site in an accessible fashion.
And of course, tons and tons of bug fixes went into Firefox 3 that make the browsing experience a much better one with Firefox 3 than it has ever been in 2. Issues like inconsistent or missing content on several pages, problems with pages that contain frame sets etc. have been resolved.