Gconf-Cleaner is a cleaning up tool for unknown or invalid gconf keys for applications stored in configuration system. This tool is quite handy in case you want to remove preferences to specific application listed on gconf applications database.
After you installed the new version, you maybe will say ” damn where is my bookmark !!!!? ” you forget it with old version usually happen :(
so, Before upgrading to Ubuntu 10.04 LTS which will release on April 29, their are 5 things recommended to do with the distribution you already have. whatever is the distributions is ubuntu 9.10, older versions, or other distribution.
1. Bookmark ” Favorite “ Backup
Most users using Firefox web browser, Google Chrome, Chromium ” based web browser on chrome ” , Opera, …
go to bookmarks then organize bookmarks then you will find export bookmarks. I recommend to export it as HTML file, to easily use it on any other web browser.
also you can export addons if you want. this applications is recommend to backup addons ” FEBE ”
Go to tools, then bookmark manager, then press export it will export it as HTML .
Go to Bookmark, then book mark manager, export it as well.
2. Evolution mail, Thunderbird Backup
If you want to keep your saved messages, you can easily backing it up. go to file, then backup options it will back all messages on archiving file I believe it tar.gz
3. Backup installed packages, and specific file on file system directory.
Many file you may be forget for your webcam, documents files, multimedia files, ….
Many applications used to backup files or packages on ubuntu, Timevault or Unison.
4. Backup Compiz Fusion
If you are using Compiz fusion make sure you backed up your compiz fusion profile, to easily get same look next time you are going to use compiz.
5. Time to destroy Ubuntu
install any package you didn’t want to try it with this version just for fun. install extra compiz fusion plugin till message comes up telling you ” you have serious kernal error you have to restart ” 
, share with us what you will do with your own release before installing the new release.
Many Ubuntu new users complain about uncompleted removed software , as many of them are looking for softwares which can make this job easily as they are not fans of the old classic command-line way .
Cleaning up Ubuntu , is necessary to remove the orphan packages which are result of incomplete removal of the package , configurations , Cache .
There are some very helpful applications which can help you keeping your Ubuntu installation clean .
1 – UbuntuTweak http://ubuntu-tweak.com/ :
My favorite application for tweaking Ubuntu it also provide cleaning tool for removing orphan packages , clearing cache , configurations , and most importantly cleaning Kernel .
2 – GtkOrphan http://www.marzocca.net/linux/gtkorphan.html :
Small but effective graphical tool to use remove orphaned libraries . It also provide control for Non-orphaned packages .
3 – Computer Janitor :
Small lightweight app to find and remove unused software packages , as it provide selection of recommended list of packages and configuration tips .
4 – KleanSweep :
Very useful and helpful application provides many features to clean up Ubuntu installation and the hard disk from empty files , empty files , backup files , broken symbolic links , broken executables , dead menu entries , duplicate files , orphan packages , and obsolete thumbnails .
5 – Sweeper :
Cleans the system from unwanted files as web browsing cache , saved clipboard contents , recent documents , Thumbnails cache .
6 – FSlint (FileSystem Lint) http://www.pixelbeat.org/fslint/ :
it is a tool for removing duplicates from Ubuntu , it looks for duplicate files , installed packages , bad name clashes , temporary files , broken symbolic links , empty directories .
7 - BleachBit http://bleachbit.sourceforge.net/ :
Is a small very useful system tool to clean up the system from unnecessary files . The most important feature is cleaning the system from software temporary and cache files such as adobe reader , Firefox , Java , OpenOffice , Opera , and many other application .
8- Debian Package Search http://packagesearch.sourceforge.net/ :
It searches the installed debian packages and provides information about the packages as well as it look-up for the orphan packages .
