Custom CSS extension
Security at a glance
Low riskSafety score 93/1004 findings
Automated estimate from our latest scan (malware, permissions, obfuscation) — not a security audit. Higher safety score is better.
See the full security reportFirefox listing ID: custom-css-editor
Permissions (6)
- View open tabs
- Access all HTTP sites
- Access all HTTPS sites
Related extensions
Frequently asked questions
Is Custom CSS safe to use?
Our latest automated scan rates the Firefox listing of Custom CSS at 93/100 (low risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.
What permissions does Custom CSS require?
Custom CSS requests 6 permissions. The most significant: View open tabs, Access all HTTP sites, Access all HTTPS sites. See the full breakdown in the security report.
Who develops Custom CSS?
Custom CSS is published by orbitalfetch. Impersonators copy popular extension names, so always verify the developer line and listing id on the store page before installing.