Mozilla's popular Internet browser Firefox is set for its next big incremental update "soon", and the team has laid out what we can look forward to.

More than just a set of improvements and minor new functionalites (though there is that, too, of course), 3.5 is touted by Mozilla as representing "a huge upgrade to the web itself", which is to say there will be "support for open audio and video (Ogg), threads in JavaScript, new canvas features, tons of new CSS features, downloadable fonts, geolocation, and more." If you're really into this stuff, head over to Firefox Hacks where Mozilla is demonstrating the new stuff daily as part of their 'Firefox 3.5 in 35 days' feature.

Another upgrade to get excited about is the add-on installation process -- developer Dave Townsend says he's aiming to "let users know that new add-ons have been installed and let the add-on help the user move forward without needing to show popup dialogs or inundate the user.” If you have suggestions, or are just curious to get all the details, take a jaunt to his blog.

We'll have more news for you on 3.5 as the release draws near.