User Agent: Mozilla/5.0 (Windows NT 6.1; rv:35.0) Gecko/20100101 Firefox/35.0 Build ID: 20150122214805 Steps to reproduce: click "write" to create a new email. or click "reply" to an email Actual results: Thunderbird freezes up immediately after doing so, if it doesn't unfreeze after a minute or so, it won't and are forced to hammer the close button to force close Thunderbird. this problem existed in the past 5 previous versions and does the same thing happens in Thunderbird safe mode, which is pointless anyway because I have no addons installed Expected results: the window to write an email or to reply to an email should come up as without any freezing.
imap accounts? Or pop? Hung with high CPU, low, or none? Do any of the steps at https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems#Diagnosis_Steps help?
imap, and hung with no CPU
If your problem aactully occurs even with Tb's -safe-mode, do you see your problem with newly created profile? 1. thunderbird.exe -ProfileManager => create new profile, start with the profile 2. at first account creation request, Cancel 3. create dummy news account with news server=news.news.news with dummy mail address like firstname.lastname@example.org => 1 identity is defined 4. Compose a new mail "New mail composition window open" shouldn't produce freeze like phenomenon if norml environment, because "New mail composition window open" simply opens composer window. If no problem with new profile, and if problem occurs even with -safe-mode of Tb, something wrong in your profile is suspected.
Moltres? (see comment 3)
Resolved per whiteboard