I have used Thunderbird for twenty years without problems - till now. About a month ago, TB started asking me to confirm security exceptions that in the past had been stored reliably, except after an update, every time I opened the program. As of Feb. 2, TWO of my three email addresses are not functional, because the security exception box does not pop up (I guess!) I see the 'working' loop, and it keeps working and working - but nothing loads. The third email address is fine - but I am telling it to confirm the security exception almost daily. My three email addresses have different domain names, but all three domains are hosted by Dreamhost. Is there a consumer solution available - or is this a bug that Mozilla needs to address?