Can you attach a screenshot?

• https://support.mozilla.org/en-US/kb/how-do-i-create-screenshot-my-problem
• use a compressed image type like PNG or JPG to save the screenshot

You can check in Font Book for font issues like corrupted and duplicate fonts.

Here you go, a screen shot showing how some text is unreadable. This is not a Font Book issue, I don't have this problem with any of the other browsers Safari and Chrome. I like Firefox, but can't work in it when I keep having this issue. I'm hoping you can help resolve the issue.

Thanks for your help.

Michael

This is a problem with a font, so you need to look into this.

(deleted, wrong messge)

Sorry posted the wrong info above, should have been this.

You can right-click and select "Inspect" to open the built-in Inspector with this element selected.

• https://developer.mozilla.org/en-US/docs/Tools/Page_Inspector/How_to/Examine_and_edit_HTML

You can check in the Rules tab in the right panel in the Inspector what font-family is used for selected text. You can check in the Fonts tab in the right panel in the Inspector what font is actually used because Firefox might be using a different font than specified by the website.

• https://developer.mozilla.org/en-US/docs/Tools/Page_Inspector/How_to/Edit_fonts