Are you using Linux, by any chance? IIRC, the issue here is that the update is done by your package manager, changing Firefox's files out from under them. If yo

Are you using Linux, by any chance? IIRC, the issue here is that the update is done by your package manager, changing Firefox's files out from under them. If you use the direct download from Mozilla, it shouldn't be as disruptive. I still hope a fix or workaround to this can be found, but knowing why something is the cause makes it easier to accept, at least for me :)