Created attachment 574126 [details] [diff] [review]
There are probably a bunch of problems caused by this, but the most obvious one (to me) is that the OpenSearch tab type doesn't get registered on first-run of a Thunderbird installation.
Comment on attachment 574126 [details] [diff] [review]
r=me. Please transplant to aurora as well as opensearch is there, we should have it there as well.
Checked in: http://hg.mozilla.org/comm-central/rev/6183e7eb32db