xul:progressmeter was converted to html:progress. But looks like it's still
reproducible at least on linux.
In scratchpad or console, do
document.getElementById("tabmail-
container").appendChild(document.createElementNS("http://www.w3.org/1999/xhtml";,
"progress"));
... and check CPU usage. For me it goes to around 20% and stays there.
Can also reproduce on Firefox nightly. There in the Developer Tools |
Console
document.getElementById("urlbar").appendChild(document.createElementNS("http://www.w3.org/1999/xhtml";,
"progress"));
The only difference is that there it jumps from listing Firefox to "GPU
process" and back. It's still Firefox causing it.
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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/109943
Title:
Thunderbird: high CPU usage from progress bars
Status in Mozilla Thunderbird:
Confirmed
Status in thunderbird package in Ubuntu:
Confirmed
Bug description:
Binary package hint: mozilla-thunderbird
When sending a simple and short email with Thunderbird via SMTP the
CPU is used intensively. This seems not to be necessary. If the
sending failed and an corresponding error message dialog appears, the
CPU is still being used. When pressing ok to close the error dialog
the CPU is fine. This suggests it might be related specifically to the
progress bar. Such behavior is especially annoying on a laptop where
you can hear the CPU usage because of a starting fan.
To manage notifications about this bug go to:
https://bugs.launchpad.net/thunderbird/+bug/109943/+subscriptions
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