I'm having trouble reading some webpages on Firefox and MacOS. I commonly come across sites that look like the following.

Is it possible to determine which font is missing by inspecting the web page source or via web developer tools? The issue seems to be specifically related to Firefox as the fonts are loaded correctly with Chrome and Safari

Edit: Here is an

CodePudding user response：

Alternative - Go into the browser console (Command Option I) and use the console selection pointer tool (icon to the left of under 'inspector' tab) and select a piece of text with the unknown font. Under the "Rules" panel where you will see all the CSS elements for the page, add to the body or paragraph element a definition "font-family:Arial" and see if this allows you to read the text.