Toggle web custom font

Toggle web custom font

A toolbar button to toggle disabling web custom font (browser.display.use_document_fonts). Disabling it resists font fingerprint.

What is Toggle web custom font?
"Toggle web custom font" is a Firefox add-on that provides a toolbar button to easily enable or disable web custom fonts in the browser. By disabling custom fonts, users can resist font fingerprinting while browsing the web.
Merlin
Stats
By: GarryW
Users: 32
Rating: 4.67 (6)
Version: 1.3 (Last updated: 2022-01-13)
Creation date: 2019-12-05
Weekly download count: 1
Firefox on Android: Yes
Risk impact: Very low risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • browserSettings
Size: 24.80K
URLs: Website
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Merlin
Summary

Users who want to resist font fingerprint can disable web custom font by setting browser.display.use_document_fonts = 0 in about:config, but that will break some web. So I made this button to toggle it.

User reviews
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Safety
Risk impact

Toggle web custom font is safe to use. It does not request any sensitive permissions.

Risk likelihood

Toggle web custom font has earned a fairly good reputation and likely can be trusted.

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