Theme Font & Size Changer – Get this Extension for 🦊 Firefox (en-US)

Download Theme Font & Size Changer for Firefox. Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Toggle Website Colors (Global) – Get this Extension for 🦊 Firefox (en-US)

Tab Manager Plus for Firefox – Get this Extension for 🦊 Firefox (en-US)

Simple Tab Groups – Get this Extension for 🦊 Firefox (en-US)

ReFont – Get this Extension for 🦊 Firefox (en-US)

How do you change the font size and color on the Firefox 10 toolbar?, Firefox Support Forum

Wudooh – Get this Extension for 🦊 Firefox (en-US)

Theme Font & Size Changer – Get this Extension for 🦊 Firefox (en-US)

Cookie-Editor – Get this Extension for 🦊 Firefox (en-US)

Theme Font & Size Changer – Get this Extension for 🦊 Firefox (en-US)

A Better Browsing Experience for 2023 with Firefox, by Nuno Campos, Technology Hits

JSON Lite – Get this Extension for 🦊 Firefox (en-US)

Theme Font & Size Changer – Get this Extension for 🦊 Firefox (en-US)

Toggle Fonts – Get this Extension for 🦊 Firefox (en-US)