Ark will install the KDE runtime as a dependency. In my system, with almost no KDE packages installed, APT suggests me that it will use 185M after installation.

```
# apt-get install ark
[...]
Need to get 72.5 MB of archives.
After this operation, 185 MB of additional disk space will be used.
Do you want to continue [Y/n]? ^C^C^C^C^C^C^C^C^C^C
```

For a virtual machine, it is excessive for something which is, basically, a `tar xjf`.

I love the idea of being able to install Firefox from the Mozilla precompiled binaries, but I think that it should be possible to skip the `ark` dependency, if you are using the package from the distribution.