After deleting browsing history, set to never remember history (in Firefox)
- Open menu (the box with 3 stripes)
- Choose Preferences
- Choose Security (from above)
- Under History select "Never remember history"
- Additionally, always browse in New Private Window
Chrome & Chromium store history except when you..
- Activate the built-in third party cookie blocker
- ..choosing "Customize" (similar button with 3 stripes)
- Go to settings
- Scroll down & <click> on "Advanced settings"
- Under "Privacy" choose "content setting" button
- Check the box beside "Block third-party cookies and site data"
Update: Also in Firefox (under options) <click> Advanced then, from the row of tabs, "Data Choices".
- Disable (by un-checking) Telemetry, Firefox Health Report, and Crash Reporter.