you need to download theme/extension to your comp by right clicking and "save as..."
then you go to TB and go to install....but you install file you DLed to your comp. otherwise it usually considers it as FF theme/extension......
since some work in both.
just save theme/extension you like to your comp and install from there. works 100%.
http://www.tom-cat.com/mozilla/thunderbird.html
thats the theme i use in both now + they have some cool tricks to play with userChrome.css
then you go to TB and go to install....but you install file you DLed to your comp. otherwise it usually considers it as FF theme/extension......
since some work in both.
just save theme/extension you like to your comp and install from there. works 100%.
http://www.tom-cat.com/mozilla/thunderbird.html
thats the theme i use in both now + they have some cool tricks to play with userChrome.css