"Hardware Acceleration" (GPU Rendering) is one of the newly introduced feature of Mozilla Firefox 4.0. It was introduced to increase performance but some Firefox users might want to disable it as the text might not look well on their screens.
If you also want to disable Hardware Acceleration feature in Firefox, following trick will help you:
1. Open Mozilla Firefox, click on the orange Firefox button and select "Options".
2. Go to "Advanced" tab and disable "Use hardware acceleration when available" option.

3. Click on OK button and restart the browser.
This article was posted by VG in following section: Mozilla Firefox, Troubleshooting.
If you enjoyed this article, subscribe to our RSS feed or free newsletter to get all new articles directly in your Inbox. Also check out our popular articles and archive to read other interesting articles.
Kyle
HEY... i didnt kno they hav hardware acceleration too in firefox
...
WAT A COPYCAT
JKJKJKJKJKJK
leomate
I know why i got font problems.
I only need to update Drivers and its show correctly.
And i use GDIpp for font smoothing just like in Safari browser. (recomended)
BobbyPhoenix
GDIPP is awesome. Been using it for months now.
SergioJP
Don't disable hardware aceleration, to fix font problem, install this addon (addons.mozilla.org/pt-br/firefox/addon/anti-aliasing-tuner/), with this addon you can configure font rendering.
ugly2
if you have blurry fonts on win xp check cleartype before you disable hardware acc.