It looks like the web page is not loading properly. Load the web page. Then, to reload the page bypassing the cache and force a fresh retrieval; '''Ctrl+Shift+R ''(Mac=Command+Shift+R)''''' Try this several times.

We have seen reports that this can be caused by a problem with fonts like Roboto or Helvetica that you have installed locally and that might be corrupted. Also make sure you allow pages to choose their own fonts and that you do not block remote (downloadable) fonts. *[/questions/1325619] Weird font on some website's *[/questions/1330670] Render letters ---- 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 <b>Rules</b> tab in the right panel in the Inspector what font-family is used for selected text. You can check in the <b>Font</b> 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