Ubuntu
firefox package

  1. Bug #788102
  2. Comment #23

Comment 23 for bug 788102

Revision history for this message
In , Roc-ocallahan (roc-ocallahan) wrote :

Created attachment 494154
GMail folder view display list

Looking into ComputeVisibilityForRoot, the cost is all about nsDisplayClip::ComputeVisibility and the region manipulation it does.

This is a dumped display list for the GMail folder view. There are 1353 display items, of which 565 are nsDisplayClip. That seems excessive!