My main Firefox in that setup is from the Mozilla repos, rather than the ESR version that is the default in Debian stable. So, it could very well be that. I will have to check to see what the ESR Firefox from the Debian repos does.
My main Firefox in that setup is from the Mozilla repos, rather than the ESR version that is the default in Debian stable. So, it could very well be that. I will have to check to see what the ESR Firefox from the Debian repos does.