I am sorry but I use Archlinux and everything is alright and I cannot reproduce the trouble that you are experiencing. I think that it is probably because Suse is using it's own theme and icon that you have such trouble.
For the only one line recipient just press enter after entring your first e-mail address and you will be able to add more recipient.
As for the quick text extension I don't understand what you mean. Is it an extra add-on that you add on top of Thunderbird?
I am sorry but I use Archlinux and everything is alright and I cannot reproduce the trouble that you are experiencing. I think that it is probably because Suse is using it's own theme and icon that you have such trouble.
For the only one line recipient just press enter after entring your first e-mail address and you will be able to add more recipient.
As for the quick text extension I don't understand what you mean. Is it an extra add-on that you add on top of Thunderbird?
Thanks for the feedback - Apr 13 2012