Today the Mozilla project released with Mozilla Firefox 1.0PR a preview release for the upcoming browser Mozilla Firefox 1.0. It contains several improvements for example a lightweight RSS integration. For more details please read the release notes :-)
Also Mozilla's email client Thunderbird got an update today. The new Thunderbird 0.8 for example includes an RSS reader.
Both programs are available on Mozilla.org
The Mozilla project also launched a new site that should help spreading word about Firefox: SpreadFirefox.com So if you want to help making Firefox more known all over the world, this would be a good starting point for you :-)