Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Fontonic - Customize Fonts

Fontonic - Customize Fonts by amkhrjee

Customize the web's fonts! - Changes fonts of any website with your locally installed fonts - Saves your preferences for future visits to the site - Restore to defaults anytime you want

5 (4 reviews)5 (4 reviews)
88 Users88 Users
You'll need Firefox to use this extension
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Customize website fonts your way!Advanced settings for power users
About this extension
Tired of boring website fonts?

Fontonic lets you take control with a single click! Change any website's fonts to match your style using the fonts you already have.

Choose from all font types: serif, sans-serif, and monospace. Customize everything or just a few, the power is yours! ️

See your changes instantly with a single click on "Apply Selection." ✨
And best of all, your preferences stick around even after you close the tab! ✅

Don't like your changes? No problem! Simply hit "Restore" to go back to the original fonts. ⏪

I'd love to hear from you! Share your feature requests in the reviews.

View source code: https://github.com/amkhrjee/fontonic-firefox
Rated 5 by 4 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
4
4
0
3
0
2
0
1
0
Read all 4 reviews
Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access your data for all web sites
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
Version
1.7.7
Size
211.56 kB
Last updated
2 months ago (12 Jun 2025)
Related Categories
  • Appearance
Licence
GNU General Public Licence v3.0 only
Version History
  • See all versions
Add to collection
Report this add-on
Support this developer

The developer of this extension asks that you help support its continued development by making a small contribution.

Contribute now

Release notes for 1.7.7
Ported the Chromium version of the extension to Firefox
More extensions by amkhrjee
  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike Licence v3.0 or any later version.