If you have increased the minimum font size then try the default setting "none" in case the current setting is causing problems. *Tools > Options > Content : Fonts & Colors > Advanced > Minimum Font Size (none) Make sure that you allow websites to choose their fonts. *Tools > Options > Content : Fonts & Colors > Advanced > [X] "Allow pages to choose their own fonts, instead of my selections above" *https://support.mozilla.org/kb/Changing+fonts+and+colors It is better not to increase the minimum font size, but use an extension to set the default page zoom to prevent issues with overlapping text. *Default FullZoom Level: https://addons.mozilla.org/firefox/addon/default-fullzoom-level/ *NoSquint: https://addons.mozilla.org/firefox/addon/nosquint/

My default settings do not offer "none". I did the web page font setting set to none. Thank you