Wow, that's the most overgrown bars I've seen in some time! On average, horses need to see a farrier & have their feet trimmed 6 weekly, but many horses & at some times of the year need to be done more frequently than that. At a guess, I'd say your horse is at least 3 months OVERdue.
Perhaps there were 'blowouts' happened at the front of the frog & due to them being in bad shape, they haven't yet grown normal external horn. But I wonder, have you used any heavy chemicals on her feet? How long has it been like that?
Be interested to know the state of these feet generally, whether the horse is/has foundered, metabolic issues or such. Pics after the farrier has been would be good - see the link below for pic tips.