For some reason, font smoothing isn't enabled in Firefox 3. Applying this tweak will force it to use the same smoothing as your gtk settings.
Step 1 - Open firefox settings page
- Open a new window or tab and paste this into the address bar...
Step 2 - Find and change the setting
- After clicking the "I'll be careful" button, type "gfx" into the Filter bar.
- The bottom option, called
is the one you want. Double-click to enable it, then restart Firefox.
Step 3 - Test it!
- Is your font quality better than before? Some fonts don't have any difference, whilst others (e.g ones downloaded yourself) do.