As I said in my post earlier I have upgraded to Kubuntu 10.10 from 9.10. The first thing you will miss is Firefox. Kubuntu now uses Rekonq as the default browser, but I prefer Firefox. I have a number of plugins that I need to user (mostly the firebug debugging environment, but also some other ones.

The Internet menu in applications has the Firefox installer so download and install is not hard. If you prefer to do it in the command line you can use:

sudo apt-get install firefox

Move configfiles over

Then you need to copy over the config files. All the config files are in .mozilla so its an easy thing to do to move it over

cd ~
(cd ../CD/jan_old; tar cf - .mozilla)|tar xvf -

Then you get everything back. History, bookmarks, Certificates, etc. You might need to reinstall some plugins but that depends on versions and so on.

Setting default browser

If you also want to make sure that Firefox is the default browser for other applications, you can set that with the update-alternative command.

sudo update-alternatives --verbose --config x-www-browser

And then select firefox as the default one.