ARS Technica writes Firefox 3 has already been downloaded more than 20 million times since the official launch last week. The new Firefox browser already has a marketshare of around 4 percent.
he number of Firefox 3 downloads continues to climb, but currently represents only a portion of Firefox's 170 million daily users. This is primarily because Mozilla has not yet rolled out the new version to existing Firefox 2 users through the update channel. In response to an inquiry, Mozilla told us that they have not finalized the schedule for when Firefox 3 will be made available to Firefox 2 users through the update channel, but they suspect that it will happen within the next two or three months.
Net Applications provides detailed market share statistics that show the rate of Firefox 3 adoption on an hourly basis. Last month, prior to the official launch, Firefox 3 prerelease versions alone totalled 0.62 percent of the browser market—not far from Opera's 0.71 percent. Within a few hours after the release, Firefox 3 market share had jumped to 1.16 percent. According to Net Applications, Firefox's total global market share is currently around 19 percent. Opera got a slight boost too following the release of Opera 9.5, but still hasn't exceeded one percent according to Net Applications.