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Thunderbird:Testing:Memory Usage Problems (view source)
Revision as of 15:00, 12 November 2025
, Wednesday at 15:00change "lower probability items" to "Less common possibilities", put RSS under Less common, formatting changes
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== Diagnosis Steps == | == Diagnosis Steps == | ||
Did you check the items above in [[#Diagnosis Introduction|Diagnosis Introduction]]? | Did you check the items above in [[#Diagnosis Introduction|Diagnosis Introduction]]? | ||
# Are you using the newest Thunderbird? <small>Check Help > About in Thunderbird to see what channel and version you are running. Then visit https://thunderbird.net/download to see what version is available for your channel. NOTE:most | # Are you using the newest Thunderbird? <small>Check Help > About in Thunderbird to see what '''<u>channel</u>''' and version you are running. Then visit https://thunderbird.net/download to see what version is available for '''<u>your channel</u>'''. NOTE: most users are on the "esr" channel, not "release". Also check the [https://www.thunderbird.net/system-requirements/ current System Requirements] to see whether your OS is supported.</small> | ||
#Start Thunderbird in [https://support.mozilla.org/kb/troubleshoot-mode-thunderbird Troubleshoot Mode]. If it helped then start in normal mode and if the problem returned:<small> | #Start Thunderbird in [https://support.mozilla.org/kb/troubleshoot-mode-thunderbird Troubleshoot Mode]. If it helped then start in normal mode and if the problem returned:<small> | ||
#*Visit Add-ons and Themes - disable two or more extensions, themes or language packs at a time to determine which might be causing the problem. Are any in the [[#Other_Software|list of Problem Extensions]]? | #*Visit Add-ons and Themes - disable two or more extensions, themes or language packs at a time to determine which might be causing the problem. Are any in the [[#Other_Software|list of Problem Extensions]]? | ||
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#* Do any Inbox or filtered folders have several thousand messages? If so, especially for Inbox, consider deleting some messages or moving some to another folder with [https://support.mozilla.org/en-US/kb/archived-messages Archive] or some other method. | #* Do any Inbox or filtered folders have several thousand messages? If so, especially for Inbox, consider deleting some messages or moving some to another folder with [https://support.mozilla.org/en-US/kb/archived-messages Archive] or some other method. | ||
#* Are [https://support.mozilla.org/en-US/kb/compacting-folders compacts] routinely performed? Compact must be automatic or done regularly (at least weekly) using [https://support.mozilla.org/en-US/kb/menu-reference#w_compact-folders manual File > Compact Folders]?</small> | #* Are [https://support.mozilla.org/en-US/kb/compacting-folders compacts] routinely performed? Compact must be automatic or done regularly (at least weekly) using [https://support.mozilla.org/en-US/kb/menu-reference#w_compact-folders manual File > Compact Folders]?</small> | ||
# | # Do you have any remote Calendars?<small> | ||
#* Try disabling two or more calendars at a time. | #* Try disabling two or more calendars at a time. | ||
#* If you have many recurring, never ending calendar appointments, try reducing the time period and number of them. Less likely starting with version 128's fix for {{bug|1844408}}. Examples: [https://www.reddit.com/r/Thunderbird/comments/16c89wo], [https://www.reddit.com/r/Thunderbird/comments/18ypd8r/comment/kgcyox8/] | #* If you have many recurring, never ending calendar appointments, try reducing the time period and number of them. Less likely starting with version 128's fix for {{bug|1844408}}. Examples: [https://www.reddit.com/r/Thunderbird/comments/16c89wo], [https://www.reddit.com/r/Thunderbird/comments/18ypd8r/comment/kgcyox8/] | ||
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# If you see high CPU usage in Windows taskmgr, Mac activity manager, or linux top, sort the CPU column (details tab for Windows) to see if [http://forums.mozillazine.org/viewtopic.php?p=12641015#p12641015 mozilla updater.exe], Window's update or some other process is hogging CPU. | # If you see high CPU usage in Windows taskmgr, Mac activity manager, or linux top, sort the CPU column (details tab for Windows) to see if [http://forums.mozillazine.org/viewtopic.php?p=12641015#p12641015 mozilla updater.exe], Window's update or some other process is hogging CPU. | ||
# If you have newsgroup accounts, then in Account Settings > Server Settings try disabling "Check for new messages at startup". <small>If problem is gone you may be seeing [https://groups.google.com/d/msg/mozilla.support.thunderbird/_6yvdz0de9g/9KJVVBqIAwAJ many newsgroups with many unread messages], {{bug|185634}}, {{Bug|541001}}, or [http://forums.mozillazine.org/viewtopic.php?p=9900989&sid=e32e1e42a3ddcac8c8605a1cbea6b2e8#p9900989].</small> | # If you have newsgroup accounts, then in Account Settings > Server Settings try disabling "Check for new messages at startup". <small>If problem is gone you may be seeing [https://groups.google.com/d/msg/mozilla.support.thunderbird/_6yvdz0de9g/9KJVVBqIAwAJ many newsgroups with many unread messages], {{bug|185634}}, {{Bug|541001}}, or [http://forums.mozillazine.org/viewtopic.php?p=9900989&sid=e32e1e42a3ddcac8c8605a1cbea6b2e8#p9900989].</small> | ||
# Is your '''[https://support.mozilla.org/en-US/kb/profiles-tb Thunderbird profile]''' or any part of Thunderbird <u>not</u> on a local disk? If not local, does it preform better when it is moved to the local disk?<small> | # Is your '''[https://support.mozilla.org/en-US/kb/profiles-tb Thunderbird profile]''' or any part of Thunderbird <u>not</u> on a local disk? If not local, does it preform better when it is moved to the local disk?<small> | ||
#* Cloud storage is not supported. | #* Cloud storage is not supported. | ||
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#* Check BIOS settings: [[http://forums.mozillazine.org/viewtopic.php?p=14773844#p14773844 hanging when sending messages if VT-x is enabled in BIOS]] | #* Check BIOS settings: [[http://forums.mozillazine.org/viewtopic.php?p=14773844#p14773844 hanging when sending messages if VT-x is enabled in BIOS]] | ||
#* If Thunderbird is running in a VM (virtual machine), is it better when not virtualized?</small> | #* If Thunderbird is running in a VM (virtual machine), is it better when not virtualized?</small> | ||
# | # Less common possibilities:<small> | ||
#* Does turning off the Status Bar in View > Toolbars help improve performance? | #* Does turning off the Status Bar in View > Toolbars help improve performance? | ||
#* Any Outlook or Hotmail accounts? {{Bug|1355885}} | #* Any Outlook or Hotmail accounts? {{Bug|1355885}} | ||
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#* Do you use server side message filters to place messages in folders? {{Bug|589310}} | #* Do you use server side message filters to place messages in folders? {{Bug|589310}} | ||
#* Do you have thousands of contacts in your address book? possible related issues: google contacts add-on], [http://hogiblog.blogspot.com/2012/01/reducing-memory-usage-of-google.html?showComment=1333621724776#comment-c8055257360225747824] | #* Do you have thousands of contacts in your address book? possible related issues: google contacts add-on], [http://hogiblog.blogspot.com/2012/01/reducing-memory-usage-of-google.html?showComment=1333621724776#comment-c8055257360225747824] | ||
#* clear cache at Settings > General > Disk Space > "Clear Now" and Help > Troubleshooting Information > "Clear startup cache..." | #* If you have RSS feed reader accounts: | ||
#** Is "Automatically create tags from feed category names" enabled? [https://bugzilla.mozilla.org/show_bug.cgi?id=1342054] | |||
#** In Account Settings > Server Settings disable "Check for new messages at startup". <small>If problem is gone you may be seeing {{Bug|551144}} (fixed in version 13).</small> | |||
#* Does it help to clear cache at Settings > General > Disk Space > "Clear Now" and Help > Troubleshooting Information > "Clear startup cache..."? | |||
#* On Linux? A package might be causing the problem [https://www.reddit.com/r/Thunderbird/comments/183tc5h/suddenly_slow_thunderbird_on_linux_gentoo_how_to/]. Are you running an old version? Consider updating. [http://forums.mozillazine.org/viewtopic.php?p=13605851#p13605851 hangs on Ubuntu 10.04, 14.04 works] | #* On Linux? A package might be causing the problem [https://www.reddit.com/r/Thunderbird/comments/183tc5h/suddenly_slow_thunderbird_on_linux_gentoo_how_to/]. Are you running an old version? Consider updating. [http://forums.mozillazine.org/viewtopic.php?p=13605851#p13605851 hangs on Ubuntu 10.04, 14.04 works] | ||
#* On macOS, try disabling Thunderbird's access to Mac Contacts in Mac System Settings > Privacy & Security > Contacts. | #* On macOS, try disabling Thunderbird's access to Mac Contacts in Mac System Settings > Privacy & Security > Contacts. | ||
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#* uninstall Thunderbird, then '''DELETE''' the Thunderbird '''PROGRAM''' directory (not the data directory), then [https://www.mozilla.org/thunderbird/ download], reinstall, and retest Thunderbird. If using beta get it from [https://www.thunderbird.net/download/beta/ channels]. | #* uninstall Thunderbird, then '''DELETE''' the Thunderbird '''PROGRAM''' directory (not the data directory), then [https://www.mozilla.org/thunderbird/ download], reinstall, and retest Thunderbird. If using beta get it from [https://www.thunderbird.net/download/beta/ channels]. | ||
#*If [[#Memory Overview|Thunderbird memory usage is more than 1.5GB or more]] then folders may be corrupted or are not being closed. Please get a diagnostic log of Thunderbird activity with '''MSGDB:5,timestamp''' using [[MailNews:Logging|logging instructions]], then [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided file a bug], and attach the zipped log file using "Add an attachment".</small> | #*If [[#Memory Overview|Thunderbird memory usage is more than 1.5GB or more]] then folders may be corrupted or are not being closed. Please get a diagnostic log of Thunderbird activity with '''MSGDB:5,timestamp''' using [[MailNews:Logging|logging instructions]], then [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided file a bug], and attach the zipped log file using "Add an attachment".</small> | ||
#If you have a reportable problem or question, please use the next section below. | #'''If none of the above helped, or you have a reportable problem or question, please use the next section below.''' | ||
<!-- not a factor since version 91 # Is panacea.dat cache file in [https://support.mozilla.org/en-US/kb/profiles-tb your profile] too big? <small>(>10MB is probably too big. Calculate with thunderbird stopped: is panacea.dat larger than #folders*0.3k? See [https://bugzilla.mozilla.org/show_bug.cgi?id=65086#c34 bug 65086], {{bug|1084276}})</small> --> | <!-- not a factor since version 91 # Is panacea.dat cache file in [https://support.mozilla.org/en-US/kb/profiles-tb your profile] too big? <small>(>10MB is probably too big. Calculate with thunderbird stopped: is panacea.dat larger than #folders*0.3k? See [https://bugzilla.mozilla.org/show_bug.cgi?id=65086#c34 bug 65086], {{bug|1084276}})</small> --> | ||
== Report a problem == | == Report a problem == | ||
Create a [https://support.mozilla.org/en-US/questions/new/thunderbird/form support request] or [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided new bug report] with | Create a [https://support.mozilla.org/en-US/questions/new/thunderbird/form support request] or [https://bugzilla.mozilla.org/enter_bug.cgi?product=Thunderbird&format=guided new bug report] with | ||
[[#Before starting|information you have collected]]: | [[#Before starting|the information you have collected]]: | ||
* '''State that you reviewed this document''', and which step numbers made things better or worse. | * '''State that you reviewed this document''', and which step numbers made things better or worse. | ||