I liked the previous version. In the new version, which was installed automatically when Firefox updated itself to Quantum, I cannot choose my own tab colors.This means I cannot use the scheme I had been using for choosing tab colors. Not great. I hope this feature will be restored.

In addition, much more than just the tab gets colored. That would be a good thing if all the tab colors were light, but many of them are so dark that I cannot read the names in the toolbar.