Lifesaver Rated 5 out of 5 stars
Thanks to the developer for saving the day. I've got just about everything restored back to normal with this addon but when using square classic tabs is it possible to remove the arrows on the Tabbar and just show the tabs?
Update: you were correct, I've been avoiding the tab scrollers with the Custom Tab Width addon and by tweaking its settings the scrollers are gone when using square tabs.
If by "arrows" you mean the tabsscrollers, then I have to tell you there is an error in your profile. There arrows are not controlled/changed by this add-on.
Try either a clean new profile or delete "localstore.rdf" from your profile folder. Beware this will reset all toolbars.
This bug is quite common when switching between Australis and non-Australis builds using the same profile.