There might be a problem with the font that is used.

Do you know what font you used previously?

You can right-click and select "Inspect Element" to open the builtin 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 Font 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

thanks, I can see the font in inspector, is Arial Armenian, but the actual fonts I see on pages like Google, Wikipedia do not look like Arial Armenian, and setting my preferred fonts in "Language and Appearance | Fonts and Colors" does not help...

What font is shown in the Font tab for text if you select text as this can be a different font than specified by the website ?

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

When inspecting the element it shows Arial, but in reality the font is not Arial...

Language and Appearance option does not solve the problem. After the latest Mozilla browser update, the Armenian font is changed to Sans Serif by default. Forcing it to Serif in Options does not work. The font now in most websites like Google, Facebook, etc. looks much smaller and poorly visible (see screenshot attached). Please provide a simple step by step guide resolve.

Language and Appearance option does not solve the problem.

When you click on 'Advanced' and uncheck 'Allow pages to choose their own fonts, instead of your selections above'; does that make a difference ?

thanks for feedback, but NO it does not solve the problem, please see the screen attached.