Bug 562977 Comment 57 Edit History

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Original comment by
on 
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 aroudn 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.
Revision 1 by
on 
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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