Firefox connects and downloads data, but dose not render. Opening an empty tab shows previews of visited pages, previews do render, strange. "about:about" and "Preferences" render with no issues. Can start from command line "firefox -safe-mode", same issue. "firefox -P" reset profile, same issue. "about:networking" turns on logs, still learning how to read them. "about:support" version 52.3.0 Turn off color override, "Preferences" -> "Content (tab)" -> "Colors (button)" -> "Override (pulldown)" set to "Never", same issue

Love "about:support", don't understand it. Tried to load png images, they would not load. I can email logs, about:support PDF and screen shots. failures: CP+[GFX1-]: Failed 2 buffer db=0 dw=0 for 0, 0, 1280, 677 Failure Log (#0) CP+[GFX1-]: Failed 2 buffer db=0 dw=0 for 0, 0, 1280, 677 (#82) CP+[GFX1-]: Failed 2 buffer db=0 dw=0 for 1267, 0, 64,677 (#83) CP+[GFX1-]: Failed 2 buffer db=0 dw=0 for 0, 0, 64, 127 (#84) CP+[GFX1-]: Failed 2 buffer db=0 dw=0 for 0, 0, 1267, 2560