How to uninstall or remove iceweasel-useragentswitcher software package from Debian 7 (Wheezy)

You can uninstall or removes an installed iceweasel-useragentswitcher package itself from Debian 7 (Wheezy) through the terminal,

$ sudo apt-get remove iceweasel-useragentswitcher

Uninstall iceweasel-useragentswitcher including dependent package

If you would like to remove iceweasel-useragentswitcher and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove iceweasel-useragentswitcher

Use Purging iceweasel-useragentswitcher

If you use with purge options to iceweasel-useragentswitcher package all the configuration and dependent packages will be removed.

$ sudo apt-get purge iceweasel-useragentswitcher

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove iceweasel-useragentswitcher