Did you know that in Ubuntu (and derivates), to install a package by its name, you can simply press Alt + F2, then enter:

apt:PACKAGE_NAME

where PACKAGE_NAME is the name of the package you want to install (firefox, smplayer or whatever)? I know it's pretty obvious, but I didn't think about it.

Firefox is able to handle one click installs in Ubuntu using a protocol called "apt: url" (Example: Playdeb.net website). On computers where apturl is enabled, clicking on a special type of link on a web page starts the installation of one or several packages available in the package repositories of this computer.

For example, from a web page, when a Ubuntu user clicks on the link apt:packageexample , the apturl protocol will launch the package manager to propose the installation of the package called "packageexample" from the repositories available on the computer.

For me, apturl wasn't enabled by default in Firefox 3.5, 3.6 or Swiftfox. But I was easily able to fix it, so I will now share with you how to do this.