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MicroB on Maemo 4
|Developer(s)||Nokia's maemo project|
|Stable release||1.0.4 / December 17, 2008|
Engine under MPL/GPL/LGPL tri-license
MicroB (pronounced /ˌmaɪkroʊˈbiː/) is a mobile web browser developed by Nokia for use in smartphones and mobile devices that run the maemo operating system(OS). The browser is Mozilla-based and uses the Gecko layout engine.
It is shipped with Nokia's N800, N810 and N900 Internet Tablets, and is also available for the 770 via the 'Hacker Editions' of the operating system. In place of Mozilla's XUL-based user interface, MicroB uses the Maemo-native (GTK-based) Hildon API and widgets.
MicroB was initially released as a public beta for Internet Tablet OS 2007 on July 17, 2007 to allow 3rd party developers and community members to develop and port plugins, and help shape the development of the browser. It was updated several times before it replaced Opera as Internet Tablet OS's default browser with the release of Internet Tablet OS 2008 on November 18, 2007 with the N810.
MicroB is limit by the platform and can' use all features like the Mozillas Fennec. In particular, Scalable Vector Graphics(SVG) support is disabled due to unacceptable performance, and XUL is not included to reduce size and decrease memory consumption. As XUL is not included, most Firefox plugins require porting and repackaging before they can be used with MicroB. In place of XUL, MicroB uses GTK and the Hildon UI toolkit to provide a native interface.
Some MicroB Plugins
- Adblock Plus
- Adobe Flash 9 (bundled with Internet Tablet OS)
- Greasemonkey - All scripts that work on the desktop version of Firefox work fine in MicroB, extending the capabilities of the browser and even replacing the need for some extensions which are not available for MicroB.
- MPlayer plugin
- Windows Media Player Stream and Real Player stream supports via the built-in Media player
- WML browser 
- ↑ Mozilla based browser engine available for testing MicroB beta announcement
- ↑ MicroB ships as the official browser for IT OS 2008
- ↑ MicroB whitepaper - 4.3 Supported web standards
- ↑ MicroB whitepaper - 2.2 Browser User Interface
- ↑ Browser Extras
- ↑ Adblock Plus Plugin
- ↑ Flashblock Plugin
- ↑ Google Gears Plugin
- ↑ Greasemonkey Plugin
- ↑ MPlayer Plugin
- ↑ Wmlbrowser Plugin