It's just an early alpha release at this point, but Mozilla Firefox 2.0 "Bon Echo" is an early showcase for the next round of the modern browser wars.
The first browser war was a blow-by-blow, feature-for-feature battle between every Netscape and Microsoft Internet Explorer release. The new browser war isn't going to be much different, as both Mozilla and Microsoft ramp up their next major version upgrades.
The first alpha in the Bon Echo release cycle is different from previous Firefox alphas, such as the 1.5 "Deer Park" release.
The new version is expected to offer an updated user interface, new history and bookmark system, search, extension, RSS and security enhancements over the current stable version of Firefox.
Mike Beltzner, user experience lead at Mozilla, recently said on his blog that the first Deer Park alpha code was known to be "really stable."
Bon Echo, in contrast, introduces more new end-user features that have not yet been fully tested, making the release more of a real alpha.
"We're purposefully pushing this alpha out as a real alpha, which means that the code is shaky, so it's meant for testing purposes. I'm not saying that it's unusable or unstable; we don't know of any data loss bugs at this point," Beltzner wrote.
"I am saying that it's not going to provide the same level of polish and shine as our previous 'alpha' releases."
The alpha 1 release includes initial attempts at a revised extension manager. One of the aspects of the new extension manager is something called "extension blocklisting," which will block "bad" extensions from running.