+
+Graphics acceleration, reduces tearing in video playback:
+```
+layers.acceleration.force-enabled = true
+```
+
+Enabling xinput2 gives pixel scrolling and fixes [bug #1276449](https://bugzilla.mozilla.org/show_bug.cgi?id=1276449).
+```
+# bash
+# ~/.xprofile
+export MOZ_USE_XINPUT2=1
+```
+
+Don't prompt to reset profile if unused for a little while:
+```
+browser.disableResetPrompt = false
+```