As it marked the 75 millionth download of its Firefox browser this week, the Mozilla Foundation said it was expanding, reports CNET. Mozilla staff has quadrupled during the past six months, to 40 employees, and the open-source foundation's email reader, Thunderbird, is approaching its 10 millionth download. Its browser for small devices, Minimo, reached a milestone as a prerelease version appeared with tabs, a bookmark manager and RSS feeds.

"This may be the first handheld browser to have both tabbed browsing and web services support," said Doug Turner, the Mozilla engineer heading up the Minimo project. "It offers desktoplike browsing functionality optimized for small screens…so you can access Gmail or Google Maps."

"Secondly, this is built on the same platform as Firefox. This will allow, for the first time, extension writers to access the handheld platform. Extensions like AdBlocker and even Greasemonkey may be easily ported and seamlessly run on these handhelds," Turner added.