Niece Extension but work badly with portable version of Thunderbird Rated 2 out of 5 stars

When I create new message (File -> New->Message) thunderbird delay for a while until give me access to edit message window. If I have opened Contacts Sidebar (View->Contacts Sidebar – F9) in edit message window then delay last much more.
I tested it on clear Thunderbird (without any extensions, just clear program) and if I disable Stationery everything work fine, but enable Stationery cause described problem.
This delay occur only one (at first create new message after open thunderbird), every next create new message do not cause this problem.

My system:
- windows 7 ultimate 64bit
- thunderbird 9.0.1 portable
- stationery 0.7.7

In previous versions of Thunderbird and Stationery (I’m working on Thunderbird 3.x and Stationery 0.6.1) this problem doesn’t exist.

This review is for a previous version of the add-on (0.7.7).