The support for touch gestures seems to be limited. What I found:

 - There exists a FireFox (Iceweasel) extension [Drag and Drop][1] that adds expected behavior (i.e. scrolling) to FireFox.
 - There is [xstroke][2] that allows detection of hand writing to use this as input method. However, this tools seems to be unmaintained since 2003 and there is no package available in Raspbian.
 - There is [Touchegg][3], a Linux multitouch gesture recognizer. Unfortunately, there is also no pre-compiled package available for Raspbian.


  [1]: https://addons.mozilla.org/en-US/firefox/addon/grab-and-drag
  [2]: https://cworth.org/~cworth/papers/xstroke/
  [3]: https://github.com/JoseExposito/touchegg