For Firefox 58.0
Disable Autofill
1) Open Firefox
2) Click the Menu button, in the upper right hand corner, then click Options
3) Select the Privacy & Security tab on the left
4) In the Forms & Passwords section
- Uncheck Remember logins and passwords
- Uncheck Autofill addresses
- Uncheck Remember search and form history
- Close the tab
To clear Form History
1) Open Firefox
2) Click the Menu button, in the upper right hand corner, then click Options
3) Select the Privacy & Security tab on the left
4) In the History section click clear your recent history
5) From the time range select everything
6) Click Clear Now
For Chrome 75.0
Disable Autofill
1) Click on the three dots in the top right and select settings
2) Under "Autofill" select "passwords"
3) Uncheck Auto Sign-in
To clear Form History
1) Click on the three dots on the top right and select "settings"
2) Scroll down to the bottom and click "Advanced Settings"
3) Under "Privacy and Security" select "Clear browsing data" and make sure history is selected
For Edge 42.17
Disable Autofill
1) Click on the three dots on the top right and click "View Advanced Settings"
2) Scroll down and under "Autofill" uncheck "Save passwords" and "Save form entries"
To clear Form History
1) Click on the three dots on the top right and select "settings"
2) Scroll down and under "Clear Browsing Data" and select "Choose what to clear"
3) Make sure that "Form data" is selected then click "Clear"