I can’t figger out how to get Pale Moon from identifying as Firefox. Even though I dropped FF, it looks like I’m still using it.
The lastest Pale Moon version (24.5.0) is supposed to address that with a fix to the UserAgent string.
Pale Moon looks like FF, but, from what I understand, they’re not all about completely changing the UI like FF does from time to time. I switched my work computer just the other day and used the migration tool to bring all my bookmarks, login info, extensions, etc into Pale Moon. It works like FF used to work; clean and fast.