There's this annoying issue ever since I decided to upgrade from FF24 ot 32, and still present in central right now and it feels like it got more irritating. As I type in the urlbar and the results update I get black flickering. To be noticable you need to have many results searched and visible. I use this addon: https://addons.mozilla.org/en-US/firefox/addon/locationbar-limit/versions/ With a fresh profile I have 150 results an 25 rows. and it's quite noticable. (Not as much as my default one). I also have near 150k history items. I have an aging CPU with a Core2 e6750, and a GTS450 card. I'm guessing with much faster systems it might be less noticeable. I posted screencasts earlier to another bug, but that was apparently a different issue. https://bug1032769.bugzilla.mozilla.org/attachment.cgi?id=8506828 https://bug1032769.bugzilla.mozilla.org/attachment.cgi?id=8506830 Disabling layers.offmainthreadcomposition.enabled works around the issue, but items appear slower.

Here's a recording of just how distracting and annoying can this issue be.

Graphics section of about:support: 2. GPU aktív false Adapter illesztőprogramjai nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Adapter leírása NVIDIA GeForce GTS 450 Adapter memóriája 1024 Alrendszer-azonosító 00000000 Direct2D engedélyezve true DirectWrite engedélyezve true (6.3.9600.17111) Eszközazonosító 0x1245 GPU segítségével gyorsított ablakok 1/1 Direct3D 11 (OMTC) Gyártóazonosító 0x10de Illesztőprogram dátuma 10-29-2014 Illesztőprogram verziója 9.18.13.4460 WebGL-megjelenítő Google Inc. -- ANGLE (NVIDIA GeForce GTS 450 Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote true AzureCanvasBackend direct2d 1.1 AzureContentBackend direct2d 1.1 AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0 Tried changing layers.prefer-* settings. Didn't help, but it did get worse, particularly with opengl. Also tried changing gfx.canvas.azure.backends, and gfx.content.azure.backends, but it only made things slower.

Bas, you think this is a duplicate of the other flickering issues?

(In reply to Milan Sreckovic [:milan] from comment #3) > Bas, you think this is a duplicate of the other flickering issues? It's certainly very possible, but very difficult to say for sure. The easiest way to test would be for the affected user to try a nightly from today or later.

It still happens.