Hello, this is my first time here and I don't think I have seen my problem addressed; if I've missed it, please let me know. 🙂
I just started using Colorful Tabs, and through this forum I have updated to 24.4. I have it set to give the tab labels a specific color (in this case, yellow to match a theme I am using) as well as the setting for domain tab colors set to "." so all the tabs are the same color. However, when I exit Firefox and start a new browser, the color defaults to black and I have to go back in to reset it. The tab label setting shows the color as being set to yellow, but I have to change it to another color, save, then go back in and change it to the desired color or it doesn't take. The domain color setting does not change. I have tried disabling all my addons and re-enabling them one by one; it has no effect on this odd bug. I am using FF30 on Windows 7. It's not a huge problem because once I fix it upon starting FF, the color stays; I just have to reset it when I start a whole new session.
FWIW, I am also not seeing rounded tabs with the 24.4 update, but they were always square for me so that is not a big deal. Just thought I would mention it. Thanks. 🙂