How to Change Font Style on Facebook: Facebook settings do not allow customers to change font size or design, but individuals could use web browser settings and also attachments to create the seeing experience they want. How to Change Font Style on Facebook Change a Font on Facebook Utilizing Firefox Web Browser Options Action 1: To change a Font using the Firefox internet browser options, choose the Tool menu , showed as 3 horizontal lines in the top-right corner of the web browser as well as select Options . Step 2: Select Content and Advanced . Action 3: Select the preferred typeface settings, deselect Allow web pages to select their own typefaces, as opposed to my choices above and also click OK . Change a Font on Facebook in Chrome Making Use Of Fabulous . Step 1: Select the Tool menu in the upper-right corner of the Google Chrome browser. Click More Tools as well as Extensions . Step 2: Scroll to the bottom of the Extensions page and click Get more Exten...