QUOTE(Alexander Ihrig @ Jan 17 2007, 02:01)

Because of the new per sender remote images option - this is a new feature in Thunderbird 2.0b1 and later. Maybe I'm able to hide this feature / menu item in older Thunderbird versions.
Okay, version 0.9.7 works again with Thunderbird 1.5 - 2.0 and Seamonkey 1.0 - 1.1.
I was able to hide the none working features in Tb 1.5 and SM 1.0, so users won't be confused. Tb 2.0b1 / SM 1.1 and later support all features in Allow HTML temp.
And one more thing: Right click in the message pane > context menu > "Show HTML". Allow HTML temps features can be found in the context menu from up version 0.9.7 - so the button is only optional to work with the extension...
These should be the last improvements before Allow HTML temp 1.0
Please, update your locales, if necessary - there are 3 locales not complete (en-US strings have been integrated to have 100 % for testing purposes)!