When graphics acceleration is disabled, about:support should say why rather than just saying "0/1 windows are accelerated". e.g. * Firefox does not yet use acceleration by default on Linux (bug 594876) * Firefox is not familiar with your graphics card * Your graphics card is known to be problematic * You need to _upgrade your graphics driver_
There's a message in the "0/1 windows are accelerated" line  when the graphics system provides one . If you're not seeing a message, nsIGfxInfo.getFeatureStatus likely returned FEATURE_NO_INFO, so about:support doesn't have any message to show. Assuming that the front-end uses getFeatureStatus correctly, and that status messages should originate in core and not the front-end, I'm moving this to Core::Graphics. But the bug would be more helpful if it described a particular situation or system where a message should have been shown but wasn't. : http://mxr.mozilla.org/mozilla-central/source/toolkit/content/aboutSupport.js#99 : http://mxr.mozilla.org/mozilla-central/source/toolkit/content/Troubleshoot.jsm#245
Component: General → Graphics
Product: Firefox → Core
Actually this looks similar to bug 673490.
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