<div dir="ltr">Try toggling hardware accelerated rendering (don't recall the about:config setting for this).<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 14, 2015 at 6:50 AM, B.J. Herbison <span dir="ltr"><<a href="mailto:bj@herbison.com" target="_blank">bj@herbison.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I haven't seen pages which don't load until I mouse over, but I sometimes see black patches after tab switches which go away quickly. I haven't noticed a pattern or found reproducible steps.<br>
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Seem with 37.0a1. I don't remember if I've seen it since the switch to 38.0a1. I'm using Ubuntu. I have a vague memory of bug reports of black flashes but I haven't tracked them down.<br>
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