I recently switched to [Firefox][ffx] as my default browser, I just couldn’t justify not using an open source client. Now the same thing is happening to my email client. I am now in the progress of switching from Apple Mail to [Thunderbird][tdb]. This process takes longer since I have a fairly complex setup, as well as the job of training the adaptive spam filter.
In similar news, my desktop is of [Firefox-ko and Thunderbird-ko][ko].
[ffx]: http://mozilla.org/products/firefox
[tdb]: http://mozilla.org/products/thunderbird
[ko]: http://www.spreadfirefox.com/?q=node/view/1468
