Firefox 1.5 introduced... with exploits.

The browser's average share in November went to 8.8%, up from 8.6% in October, "What's interesting is that in the last week of November, Firefox hit as high as 9.09 percent market share, which is indicative of its potential to hit a critical mass of 10 percent," said Vizzaccaro in a statement. According to polls, Best 2 new features: Improved software update (35%) and Faster navigation (21%). Microsoft's Internet Explorer still commands an overwhelming market share, even though it continued to dip during November. By NetApplications' count, IE fell from 86.5 percent of all browsers used in October to 86.1 percent in November. Twelve months ago, IE owned 90.3 percent of the browser business, Firefox 4.6 percent, and Safari 1.6 percent. >> Link

In other news: First exploit for FireFox 1.5 made public >> Link

Get Firefox 1.5 here http://download.mozilla.org/?product=firefox-1.5&os=win&lang=en-US