Seems to work for me using 1.6a2 and 1.7a1 on Windows platform. We previously had the same problem, Bug 547593. Maybe some change regressed it for Mac OS X?
This seems to be off and on. Try these STR: 1. Create Event in Calendar Tab 2. Switch to mail tab, then back to calendar tab 3. Delete event with Backspace
As far as I remember the Backspace key was never available for deleting an event, at least on Windows platform. Steps from Comment 2 work for me using the Delete key in Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/16.0 Thunderbird/16.0a1 (BuildID: 20120607030200).
Oh right, sorry. I said backspace because on Mac the Delete key is fn+Backspace. May be a Mac issue then.
Setting qawanted in hope that someone with access to Mac OS X can confirm this as a problem but I still think this doesn't a block development and/or testing work.
No complaints in the last 4 months although we did at another 3 releases -> no blocker.
Created attachment 8567085 [details] [diff] [review] Fix - v1 Still getting this once in a while, this should fix the error. Can you give it a quick test? My build is totally messed up, but this does seem to fix it for me.
Comment on attachment 8567085 [details] [diff] [review] Fix - v1 Review of attachment 8567085 [details] [diff] [review]: ----------------------------------------------------------------- Although the problem does not seem to occur for me on Mac OSX (I am on 10.10) nonetheless, the patch looks fine to me.
Pushed to comm-central changeset 516b43f6d312