I'm not seeing anything unusual. Reset the page zoom on pages that cause problems: <b>View > Zoom > Reset</b> (Ctrl+0 (zero); Cmd+0 on Mac)<br /> See http://kb.mozillazine.org/Zoom_text_of_web_pages If you increased the minimum font size then try the default setting 'none' as a high value can cause issues like you described. * Tools > Options > Content : Fonts & Colors > Advanced > Minimum Font Size (none) * Tools > Options > Content : Fonts & Colors > Advanced > [X] "Allow pages to choose their own fonts, instead of my selections above" ---- See also [[Websites look wrong]]