High Processor Usage with Thunderbird Window Closed (Mac)
This is a continuation of a problem I reported earlier... https://support.mozilla.org/en-US/questions/1442170
Updating to version 115.9 did not solve the problem. Today I updated to 115.10.1 and the problem persists. Thunderbird is also recommending that I update to version 116, but I don't even see that listed on the Mozilla web page for the change logs.
Thunderbird 115.10.1, Mac OS 10.13.6, iMac 20-in Early 2008 model.
I can open Thunderbird and check mail in multiple accounts. If I close the Thunderbird window (but leave the app running), CPU usage will eventually jump up to more than 100%. It does not happen right away, but could take 10 minutes or so. Currently it is at 115% processor usage. If I open the Thunderbird window again, the processor usage drops to under 8%, then drops again to below 0.4%.
All Replies (3)
If you were on a current version of MacOS I'd suggest updating to Thunderbird 128.
That is not an option for you, see I suggest looking at https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems
I don't recall any problems with memory-use getting out of control... just the processor usage going rampant. It never gets to 200% so there is still some available CPU power from my Core2 Duo and things don't necessarily feel slow until I try doing something more intensive.
Right now, Thunderbird 115.10.1 is using 492MB RAM and 0.0% CPU (though goes to 3.3% when checking for new messages). With all my other apps running, total memory pressure is 31%. I will do another test by closing the window and waiting for CPU usage to go wild and then I will check RAM usage and report back.
What is the word on version 116?
Thunderbird has gone out of control again. CPU usage is 113%, memory was up to 612MB when I noticed, and has climbed up to 682MB after another 10 minutes or so. Now it is 713MB. Memory pressure is still around 30-31%. I guess I will have to look deeper into this problem on Monday when I return to work.
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