Hi, http://rainbow.chard.org/2013/02/19/thunderbird-high-cpu/ worked for me, dropping CPU usage to almost none.
I noticed that the problem surfaces after extend time (several days) of being offline and re-syncing remote IMAP folders on multiple accounts in parallel. TB was at 100% CPU, causing the CPU fan to spin up to max, and unfortunately even on my TP x201 these fans are not built for running at max rpm all the time, so it died upon me and I had to replace the heatsink assembly ... this was of course an unlucky combination of this bug, dust in the heatsink, running at max RPM, and a kernel bug that messed up fan control, so TB alone was not the one killing my fan ;) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/927515 Title: Thunderbird stuck at 100% CPU Status in Mozilla Thunderbird Mail and News: New Status in The Ubuntu Power Consumption Project: Confirmed Status in “thunderbird” package in Ubuntu: Triaged Bug description: Just received the automatic update last night. Ever since, thunderbird is using 20-50% CPU constantly, according to top. Turned off global search and indexing to no avail. This is really bad for me as it's driving up the temperature of my laptop, runs up the fan noise and reduces battery time. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: thunderbird 10.0+build1-0ubuntu0.11.10.1 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 BuildID: 20120129183038 Date: Mon Feb 6 10:44:55 2012 EcryptfsInUse: Yes ProcEnviron: LANGUAGE=nl_NL:nl:en PATH=(custom, user) LANG=nl_NL.UTF-8 SHELL=/bin/bash Profile0Extensions: extensions.sqlite corrupt or missing Profile0Locales: extensions.sqlite corrupt or missing Profile0Plugins: pluginreg.dat isn't available Profile0Themes: extensions.sqlite corrupt or missing Profiles: Profile0 - LastVersion=3.0.6/20100713193322 (Out of date) Profile1 (Default) - LastVersion=10.0/20120129183038 (Running) SourcePackage: thunderbird UpgradeStatus: Upgraded to oneiric on 2012-02-02 (4 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/927515/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
