Some sites use delicate or wispy fonts, but if you have this problem on all sites it could indicate that Firefox isn't rendering text correctly.

Does it help to zoom (enlarge) the page? There are a couple ways to zoom:

• On the "3-bar" menu: click the - and + buttons, or reset to the standard size by clicking the % in the middle

• On the keyboard, hold down the Ctrl key and tap
  • the + key to enlarge
  • the - key to reduce
  • the 0 key to reset to the standard size

that helps with the enlargement -thanks now if I could just make it darker. Just finding this reply box is a big challenge.

Is your monitor cranked up to a high brightness level? It might be washing out a little bit in Firefox. Without putting hands on your monitor, it's hard to suggest how to check that.

Have you tried this tool in Windows: http://windows.microsoft.com/en-us/windows7/what-is-the-cleartype-text-tuner

yes did that and picked the brightest one, but it didn't seem to change. Maybe it will when I restart. again than ks for giving your time and attention.

You can use the NoSquint extension to set font size (text/page zoom) and text color on web pages.

• NoSquint: https://addons.mozilla.org/firefox/addon/nosquint/

If you have an extension like NoSquint that uses the Add-on Bar then you need to restore the Add-on toolbar with an extension like this:

• Classic Theme Restorer: https://addons.mozilla.org/firefox/addon/classicthemerestorer/

• https://support.mozilla.org/kb/what-happened-to-the-add-on-bar