canmove, Confirmed users
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#Do you see "Unresponsive Script" or "Not Responding"? If you do, is Thunderbird whitelisted in your [[Thunderbird:Testing:Antivirus Related Performance Issues|antivirus software]]? If whitelisting didn't help, set javascript.options.mem.log to true and provide a couple log entries of the form <small> CC(T+1186.6) collected: 131 (131 waiting for GC), suspected: 98, duration: 274 ms.</small> | #Do you see "Unresponsive Script" or "Not Responding"? If you do, is Thunderbird whitelisted in your [[Thunderbird:Testing:Antivirus Related Performance Issues|antivirus software]]? If whitelisting didn't help, set javascript.options.mem.log to true and provide a couple log entries of the form <small> CC(T+1186.6) collected: 131 (131 waiting for GC), suspected: 98, duration: 274 ms.</small> | ||
#Has a proxy ever been defined, and is it working correctly or was the proxy removed? (A proxy can cause "Unresponsive script") | #Has a proxy ever been defined, and is it working correctly or was the proxy removed? (A proxy can cause "Unresponsive script") | ||
#If you see high CPU usage | #Does turning off the status bar in View > Toolbars help improve performance? | ||
#If you see high CPU usage in Windows taskmgr, sort the CPU column in the details tab 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. | |||
#Is your '''[https://support.mozilla.org/en-US/kb/profiles-tb Thunderbird profile]''' or any part of Thunderbird <u>not</u> on a local hard drive? If not local, does it preform better when it is moved to the local disk? | #Is your '''[https://support.mozilla.org/en-US/kb/profiles-tb Thunderbird profile]''' or any part of Thunderbird <u>not</u> on a local hard drive? If not local, does it preform better when it is moved to the local disk? | ||
#* Cloud storage is not supported. | #* Cloud storage is not supported. | ||