Created attachment 8498014 [details] ahbifgfb.png User Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:32.0) Gecko/20100101 Firefox/32.0 Build ID: 20140924083922 Steps to reproduce: I tried to reply to all senders of an email I did sent earlier this morning (more than 4000 bcc adresses) Actual results: the unresponsive script message showed up. Expected results: the mail compose window should have opened when there are less bcc adresses it works like a charm!
I can see the problem here. I have filed some separate bugs that will help here (and generally). This is mostly a regression from bug 431217 where a slow UpdateSendLock() was added that is checked after each recipient. Adding recipients from the replied message also triggers that function.
Assignee: nobody → acelists
Status: UNCONFIRMED → NEW
Ever confirmed: true
Great find. So a regression of TB23/TB24
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