How do you remove fir strips from concrete?
Answers: They should be removed while the concrete area is just outset to set, unless they were left surrounded by as expansion joints...if so there's no easy or perfect way to remove them, other than prying and breaking sour pieces as you go. If you are in a cold/ frost nouns, you really should replace them with an expansion joint of some sort.
You can use a crow fishing rod (sorry can't spell) to wedge in between the concrete and the firing strip. You still might own to do some patch work after. Best of luck on your project!