As of April, fewer than 6 out of 10 people use Internet Explorer. The browser trends that we've noted over the past several months are continuing with no sign of alteration: IE continues to slip, Firefox and Opera are fairly static, Safari is very slowly moving forward, and Chrome is pushing ahead at breakneck speeds. If we take a closer look at IE, though, we see that version 8 of Microsoft's browser is actually growing faster than Chrome, but it's still not enough to counter the overall decaying of IE.
During May, only Internet Explorer and Firefox failed to show positive growth.
Between April and May, Internet Explorer dropped 0.26 percentage points (from 59.95 percent to 59.69 percent) and Firefox fell 0.24 percentage points (from 24.59 percent to 24.35 percent). Chrome jumped 0.32 percentage points (from 6.73 percent to 7.05 percent), Safari gained 0.05 percentage points (from 4.72 percent to 4.77 percent), and Opera increased 0.13 percentage points (from 2.30 percent to 2.43 percent). While IE still dropped the most and Chrome still gained the most compared to the other three competitors, the changes weren't as significant as in previous months.
Source: ars technica