Comment 35 for bug 184547

Looks like epiphany is to blame here. It appears that during the reconstruct, gecko sends a MOZILLA_EMBED_LOAD_LOADING signal for one background image, and epiphany's handler calls ephy_base_embed_restore_zoom_level, which ends up doing a SetTextZoom because at the time ephy_base_embed_restore_zoom_level is called, GetTextZoom returns the old zoom level, which means ephy_base_embed_restore_zoom_level believes it's different from the new zoom level in which case it fires SetTextZoom. I guess EphyBrowser should keep the zoom level itself instead of relying on GetTextZoom...