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

Download Enforce Browser Fonts for Firefox. Enforce browser fonts easily instead of letting websites use their own fonts. Easily toggle between browser fonts and website fonts by clicking on addon toolbar icon or its keyboard shortcut (Alt-Comma).

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

Open in Browser – Get this Extension for 🦊 Firefox (en-US)

I can't install any add-ons from the store

Font Finder (revived) – Get this Extension for 🦊 Firefox (en-US)

Bookmark Import - Feature Requests - myReach Forum

Font Inspector (WebExtension) – Get this Extension for 🦊 Firefox

Force web pages to extend wrap to full screen browser window width

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

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