Firefox Mobile Settings
Tap the three-dot menu in the top right corner and tap Settings.
Search
Search engines
- Select a privacy-respecting search engine
Suggestions from search engines
- Show search suggestions: Off
Address bar preferences
- Show clipboard suggestions: Off
- Autocomplete URLs: Off
Homepage
- Shortcuts -> Sponsored shortcuts: Off
Passwords
- Save passwords: Never save (Use a privacy-respecting password manager)
- Autofill in Firefox: Off
Payment methods
- Save and fill payment methods: Off
Private browsing
- Allow screenshots in private browsing: Off
HTTPS-Only Mode
- HTTPS-Only Mode: On
- Turn on: Enable in all tabs
Enhanced tracking protection
- Turn on: Strict
- Tell web sites not to share & sell my data: On
Site permissions
- Cross-site cookies: Blocked
Data collection
- Usage and technical data: Off
- Marketing data: Off
- Studies: Off