The whole maintainer model exists in Debian because Debian tries to do its own maintenance on packages, even if the original developers are unwilling to accept

The whole maintainer model exists in Debian because Debian tries to do its own maintenance on packages, even if the original developers are unwilling to accept the fix back. Chromium and Firefox are sort of monster code bases, though, it’s not surprising to me that distros are reluctant to change it in key ways.