The latest bug fix release (3.5.3) is available for download from here to registered users. It includes list text visibility fixes with textures from 3.5.1 restored (nicer list backgrounds, highlights etc.).

You can choose between unix or windows based installs if one or the other does not work with your system.

The titles in red below link to each of their themes at Mozilla.
If you are experiencing trouble installing them from there they are also available for download from this site.
I apologize for the inconvenience but you will need to login to do this.
The downloads will then be visible from Theme Downloads under the Firefox Themes menu.
NB The email address used for creating your account does not get sent to any third parties - I don't even look unless there is something wrong a particular account such as DOS etc.

Read the reviews...

Arctic Glow
Невероятная красота! Very beautiful!
Way cool - nicely designed and efficient.
I have tried quite a few and arctic glow seems to be the best, in color, working well and fast and I just love it!

glowygold
Great. I really like all the "glowy" themes but I think this one might trump them all.
This has to be the finest theme for FF. Well thought out and superbly designed.
Stunning. Looks like a whole new browse.
GlowyGold is the best I seen. Black and Gold mix so well. Very nice work on this theme detail is great.

flaminglow
I love the soothing pink. You did a great job on this.
Just adorable! Gonna suggest it to Mom in Florida. Downloaded quick and easy too!
This background completes my collection of colors to match my desktops. AND it's a great theme. Works well with the applications I use.

glowygreen
самая лучшая тема! (the best theme!).
I love all the glowplug themes. This one and glowywine are my favorites. Both are spectacular.
This is lovely. I like all of them...especially this green color. It looks wonderful against the gold.
Thank you, thank you, thank you!! I really missed this one and am thrilled it's back!
...Developer Note: there were quite a few changes from Firefox 2 to 3. It is the same with 3 to 3.5 but I will have my themes out again soon.

glowywine
I love all the glowplug themes, but I think this one is the best. Really beautiful.
So very beautiful! You are truly talented. I have downloaded everyone of your themes. Thank you for all your hard work.
I love all the Glowy themes but especially the wineglowy. Stunning! - I don't think any other theme comes close.

glowyblue
I love it !!!!. This is the best one I've tried so far !!
I LOVE IT!! Very elegant looking and readable.
Gorgeous! .....this is a real work of art. No wonder it's popular!!!!