According to Ars Technica, Apple's Safari Web browser--both the iPhone mobile version and the desktop version for Mac and Windows--has been slowly gaining marketshare in the browser wars. Ars takes this as a tribute to the slow success of the Mac in general. But Safari's growth probably comes as a surprise to most Mac users, those who downloaded Firefox because Safari, for most purposes, is a crappy browser.
Firefox has been growing too. On personal computers, Internet Explorer claims 65.5% of users, though this is dropping. Firefox has 22.5% of users. Safari is inching up to 8.5%. Chart below courtesy of Ars.
Maybe Safari is more stable on Windows; I use Chrome on my PC (1.8% marketshare). But for some reason unacknowledged by Apple, the most recent versions of Safari (3.X and 4 Beta) tend to crash on the Mac. A lot. Check out Apple's Safari support forum, and you'll see what I mean; the top threads include "Safari unexpectedly quit," "Safari crashing!!," "Safari hanging," and the ever-pitiful "Please, Please help! Safari keeps crashing."
Perhaps that's why plug-in development for Safari has been so sluggish compared with Firefox. On Firefox, I can set up panes with Google Maps or Flickr; I can keep Twitter in the bottom right corner of each window; I can customize the look and feel and even add Greasemonkey scripts to sites I use frequently. Safari's star plug-ins are Adobe Flash and, well, a bunch of pop-up blockers. There is GreaseKit, which takes the place of Greasemonkey, but it isn't quite as easy to install as you can see here . Overall, the list of Safari plugins has grown, but it has yet to rival Firefox. Check out this sad list  of 20 excellent Safari plug-ins published last month, and you'll see what I mean.
Since Safari for the iPhone is rock-solid, it's a wonder that Apple hasn't woken up and ported it back to the desktop.
[Via Ars Technica ]