Hi, I've managed to create libre versions of the Mozilla programs Icecat, Icedove and Iceape and made them available in the slack-n-free repo at connochaetos.org. This wouldn't have been possible without the work of other people, especially from Parabola and Mageia. You are welcome to adopt them for your distros.
Additionally I am working on identifying the non-free parts in Slackware and Salix in order to create a complete libre Slackware/Salix compatible repo and perhaps a distro. Besides the above mentioned Mozilla variants Linux-Libre and some other programs are already available. Greetings, Henry