Works for me and doesn't conflict with other extensions that change the tab title. Thank you.

works great. added css code to my userchrome.css file and unread tabs are styled accordingly. Very happy. This extension adds alll three styles....was using my own user script inject via fx-autoconfig but just stopped working and this is easier and works just as good. Score! Thankss

Exactly what i was missing, works perfectly with PAXMOD (Tabs in multiple rows).
Thanks a lot, well done :-)

ps
how to make the tab title bold or italic?

Does exactly what it says it does. Absolutely no complaints.

Would be nice to have an option to let manually reloaded tabs (previously in a discarded state) retain their title without triggering titlechanged. This could be very useful after session restoring, where non active tabs are always in a discarded state and mass reloading some of them is often needed for some extensions (like Searh All Tabs) to work.