Can you attach a screenshot?

• http://en.wikipedia.org/wiki/Screenshot

Use a compressed image type like PNG or JPG to save the screenshot and make sure that you do not exceed the maximum file size (1 MB).

i think you didn't get my question, it is not for pictures it happens in text: open this site in the Mozilla version 4 and/or latest one

Try to set the pref gfx.font_rendering.directwrite.use_gdi_table_loading to false on the about:config page.

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.

• Use the Filter bar at to top of the about:config page to locate a preference more easily.
• Preferences that have been modified show as bold (user set).
• Preferences can be reset to the default via the right-click context menu if they are user set
• Preferences can be changed via the right-click context menu: Modify (String or Integer) or Toggle (Boolean)

sorry, not working

The problem seems to be the Arial font in font-weight bold that Firefox doesn't display.

Does it work if you disable website fonts?

• Tools > Options > Content : Fonts & Colors > Advanced : [ ] "Allow pages to choose their own fonts, instead of my selections above"

sorry, not working its unicode font and while you make it heading/ hyperlink you will get problem.