@KenWalkerQB I only use FF to engage with Mastodon and have had no problems. Good luck.
@KenWalkerQB @Ulrich_the_Elder Maybe, or a plugin? You also mentioned you're on Linux, right? That could be a factor. I'm running on Windows.
@LouisIngenthron @Ulrich_the_Elder Both, linux on one box, windows on the other. AV or plugin, those seem like probable suspects.
@LouisIngenthron @Ulrich_the_Elder I wonder if it is a consequence of an anti-virus app