Firefox being at the bottom has nothing to do with what mozilla does. Its because they are going against google that pesters you to download chrome. The network effects of everyone downloading chrome for 15 years. The idea that google is one of the largest companies on earth and mozilla is a rag tag team. Firefox is better. You objectively have a worse experience on chrome or edge or safari. Most users otoh just don’t care about vetting software. They stick to what they know. Go to a library or cafe and be disappointed how many people browse the web with zero ad blocking because they simply don’t know any better.