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CloseReview for MessageID-Finder by Ash-do
Rated 3 out of 5 stars
I "updated" it to 2.0 and use together with "Extended Normal View" headers, where header References: 1, 2 etc. is visible (see Mnenhy: http://mnenhy.mozdev.org/customheaders.html), and clicking on these references looks-up messages correctly, which is my main and most useful use case of this add-on.
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