The release of Qt 4.4 came along with the WebKit browser engine which could be tested with an included demo browser. This demo browser is now developed independent under the name Arora and is already, while in early development a cross platform Qt browser.
WebKit is a browser engine which was originally forked from KHTML and is now developed further by Apple, Nokia, Adobe, Trolltech and others. Up to a certain point there is also cooperation going on between KHTML and WebKit.
With Qt 4.4 WebKit is officially part of Qt, and therefore every Qt app can take advantage of WebKit (this is also true for every KDE app, but they can use KHTML for quite some time now anyway). The demo browser of Qt 4.4 was shipped with the release to show what the engine is actually capable off. Since it was already a (basically) working browser its own code repository under the name Arora. The WebKit code used is the one of Qt which is directly developd in the WebKit trunk.
The browser is currently under heavy development and is still in an early phase, so it can hardly be compared against the “old” ones like Firefox or Konqueror/KHTML. However, the browser already has a nicely working Rich Text Editor support which for example works with WordPress blogs:
Also, there special private browsing mode which makes it possible to deactivate the history and cookies just for a short time:
Besides, recently the support for flash plugins was included, and Arora can restore closed tabs. Currently planned features include the support for password store mechanisms in the form of plugins which will make it possible to connect Arora to kwalletmanager and therefore integrate it seamless with KDE – or to connect it with the Gnome keyring and integrate it with Gnome.
But it can also be seen that Arora is still in development: in the version tested on this machine there were some issues with the scroll bar and also with the line-edit field and the buttons on the Google home page:
Additionally, there are some things missing: especially web shortcuts which I really got used to should be added at some point in the future. Also, the preferences dialog does not list options which are normal for other browsers (always display tabs, always open in a new tab, etc.).
However, given that the development continues at the current speed these features should be available soon. In the long term Arora could become a real competitor to Firefox: while it is also cross platform like Firefox it could actually adapt the native design of each platform thanks to Qt. Additionally, with intelligent chosen plugins it should be easy to integrate it into the platform (password storage, favourites, desktop search, etc.). Last but not least thanks to its origins it features a much smaller memory foot print and is simply faster than Firefox.
For KDE users it could be an interesting alternative to Konqueror to have a look at WebKit and simply as a stand alone browser inside KDE.
In case you want to give Arora a first test the easiest is to run Ubuntu (probably in a virtual machine) and install the precompiled binary. Since Arora does require quite recent Qt packages it can’t be compiled in Fedora 8, and even Fedora 9 might not be sufficient at the moment.