
They can update by selecting "Check for Updates" under the "Help" menu. To address that, and to move more users from 3.0 to 3.5 in a shorter span, Mozilla has changed from past practice and started offering the upgrade to Firefox 3.x users today. At or around that time, Mozilla will stop producing security patches for the older browser. Mozilla's policy is to support an older edition for only six months after the launch of a successor, meaning the kill date for Version 3.0 will be Dec. The appearance of Firefox 3.5 also starts the end-of-life clock ticking for Firefox 3.0.

Computerworld staffers were able to update without significant problems Tuesday, although some saw extremely slow download speeds. There was little sign of a similar outage today. In the ensuing rush, Mozilla's servers were briefly overwhelmed. In June 2008, Mozilla coordinated Firefox 3.0's availability with an attempt to set a world record for downloads. Unlike last year, Mozilla didn't heavily promote the upgrade this time.


"Part of this release is to provide a private browsing mode," observed McLeish. "There are some great new enhancements here," said Sherri McLeish, an analyst with Forrester Research, who noted that some of those additions, in fact, played catch-up to Microsoft's Internet Explorer 8 and Google's Chrome.
