Web Browser Settings
Computer Browsers
Firefox
Install These Extensions: uBlock Origin, Privacy Badger
Disable Password Saving: Settings > Privacy and Security -> Logins and Passwords -> uncheck all boxes
Block Third-party Cookies: Settings -> Privacy and Security -> Enhanced Tracking Protection -> select Standard
Disable Data Collection: Settings -> Privacy and Security -> Firefox Data Collection and Use -> uncheck all boxes
Set DuckDuckGo as Default Search Engine: Settings -> Search -> Change Default Search Engine to DuckDuckGo
Clear Browsing History: Settings -> Privacy and Security -> History -> select Clear History
Always Use Secure Connections: Settings -> Privacy and Security -> HTTPS-Only Mode -> check Enable HTTPS-Only Mode in all windows
Chrome
Install These Extensions: Privacy Badger
Disable Password Saving: Settings -> Autofill -> Password Manager -> toggle off Offer to save passwords
Block Third-party Cookies: Settings -> Privacy and security -> Cookies and other site data -> select Block third-party cookies.
Disable Data Collection: Settings -> Privacy and security -> Security -> toggle off Help improve security on the web for everyone
Clear Browsing History: Settings -> Privacy and security -> Clear browsing data -> select a time range and hit Clear data.
Always Use Secure Connections: Settings -> Privacy and security -> Security -> toggle on Always use secure connections
Safari
Advanced Tracking Protection: Settings -> Advanced -> Privacy -> change dropdown to "in all browsing"
Set DuckDuckGo as Default Search Engine: Settings -> Search -> Search engine -> DuckDuckGo
Clear Browsing History: Settings -> General -> Remove history items
Edge
Install These Extensions: uBlock Origin, Privacy Badger
Disable Password Saving: Settings -> Profiles -> Passwords -> toggle off Offer to save passwords
Block Third-party Cookies: Settings -> Privacy, search, and services -> Tracking prevention -> Strict
Disable Data Collection: Settings -> Privacy, search, and services -> toggle off "Required diagnostic data", "Optional diagnostic data", and "Personalization & advertising"
Clear Browsing History: Settings -> Privacy, search, and services -> Clear browsing data -> Clear browsing data now -> Choose what to clear
iPhone Browsers
Firefox
Disable Password Saving: Menu button -> Settings -> Passwords -> uncheck Save Passwords
Block Third-party Cookies: Menu button -> Settings -> Tracking Protection -> Strict
Disable Data Collection: Menu button -> Settings -> uncheck Send Usage Data
Set DuckDuckGo as Default Search Engine: Menu button -> Settings -> Search -> DuckDuckGo
Clear Browsing History: Menu button -> History -> tap Delete icon
Safari
Set DuckDuckGo as Default Search Engine: iPhone Settings -> Safari -> Search Engine -> DuckDuckGo
Clear Browsing History: iPhone Settings -> Safari -> Clear History and Website Data
Chrome
Disable Password Saving: Settings -> Password Manager -> Settings -> toggle off Offer to Save Passwords
Enhanced Protection: Settings -> Privacy and Security -> Safe Browsing -> Enhanced Protection
Set DuckDuckGo as Default Search Engine: Settings -> Search Engine -> DuckDuckGo
Clear Browsing History: Settings -> Clear Browsing Data
Always Use Secure Connections: Settings -> Privacy and Security -> toggle on Always Use Secure Connections