Hi David,
Again, sorry for the delay responding, but as per my previous reply we check all messages before they’re posted because of the amount of spam we receive. Your messages arrived over the weekend (UK time) so this is the first opportunity we’ve had to review them (it’s Monday morning).
If our Firefox plugin installation isn’t installed, there’s no way Affixa can be causing the behaviour you’re seeing. If there’s no plug-in installed, we have literally no means of talking to or interacting with Firefox (other than telling it to load a web address) and something else must be causing the tab closure.
I’ll check again to see if we can identify any incompatibilities with the latest version of Firefox, but there shouldn’t be any.
Chris