y knot Firefox?

I found one source! It was sponsored by the British Tobacco Company, lol.

Nah, it’s difficult to find recent data of it - because I get the impression from the papers I have found - the idea was thrown out as a marketing ploy in the 50s and has no significant impact on risk.

Instead it just makes cigarettes worse for the environment - because the filters don’t decompose.

I don’t know how it stacks up but there’s also DuckDuckGo’s browser - it has the added benefit of ‘App Tracking Protection’ which stops other apps from collecting data in the background by using a local VPN. Crazy how much it blocks - even for apps that haven’t been launched at all recently.