Comment 14 for bug 297143

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In , Michael Doube (michael-doube) wrote :

Xorg's CPU load is only high if some part of the Thunderbird / Firefox window is being drawn; if you run top in a terminal window 'always on top', then minimise and maximise Thunderbird while a big email is downloading you can see Xorg's CPU load going from high (50-70%) to low/normal (10-15%). You can also observe this behaviour by maximising another window in front of Thunderbird.