Hello.
Font Book on my Mac has been rendered useless by some corrupted file or font. Whenever I open Font Book, it crashes within seconds of attempting to open the application. All of the suggestions I have received are ineffective since the application crashes, which prevents any manipulation. If this was a PC, I might be able to figure it out, but my experience with Mac is limited. I would welcome any thoughts or suggestions as to where I can seek advice.

Too many fonts for FB to handle ?

https://apple.stackexchange.com/questions/176674/how-do-i-regain-access-to-font-book-it-opens-hangs-then-requires-force-quit

Thank you for this information. I look forward to getting this nuisance addressed.