If you install Firefox 17 from “Apps”, you can see that firefox version is not the current version from mozilla.

And if you use that version, you’ll get annoying pop-up window saying that you need to update your firefox. Fortunately, it is easy to update firefox in Tiny Core Linux. Here is what I have done:

1. Download the current firefox version (in this example version 17.0.6):

wget ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/17.0.6esr/linux-i686/en-US/firefox-17.0.6esr.tar.bz2

2. Extract the newly downloaded firefox:

tar xjvf firefox-17.0.6.esr.tar.bz2

3. Move the original firefox tcz file to the current directory:

mv /mnt/sda1/tce/optional/firefox17.tcz .

4. Extract the tcz file:

unsquashfs firefox17.tcz

5. Delete all of the files and directories under “squashfs-root/usr/local/firefox17”:

sudo rm -R squashfs-root/usr/local/firefox17/*

6. Move all the files and directories in firefox folder:

mv firefox/* squashfs-root/usr/local/firefox17/.

7. Rename folder “squashfs-root” to “firefox17”:

mv squashfs-root firefox17

8. Create firefox17.tcz file:

mksquashfs firefox17 firefox17.tcz

9. Move the newly created tcz file to tce folder:

mv firefox17.tcz /mnt/sda1/tce/optional/.

10. Don’t forget to delete firefox folders:

rmdir firefox
sudo rm -R firefox17

11. Update the md5 checksum file:

cd /mnt/sda1/tce/optional
md5sum firefox17.tcz > firefox17.tcz.md5.txt

12. Restart computer, open firefox and check the version.

13. Enjoy!