A great list for those of you using, or thinking about using, HTML5 and CSS3 capabilities. Of particular note:
- HTML5 support now includes video, audio, and offline storage and resources.
- CSS support is in line with Safari. FX now supports font linking, promotes -moz-opacity to just opacity, supports text-shadow, word-wrap, and -moz-box-shadow, columns, transforms, and new pseudo-elements.
- Geolocation API support is baked in. Webapps can now reference the navigator.geolocation object via JS and find the browser’s location. This is a huge step.
- Native JSON support in the DOM.
- Cross-site scripting allowances, which helps make some third-party AJAX requests possible. This has been a big argument for years now.
All in all, this is a really serious release for front-end developers. Since Firefox upgrade adoption is often quite quick, a lot of these will be things which, along with Safari support, you can start using with early-adopter crowds quite soon.