I do similar:<p>* Chromium = google services only<p>* Firefox = work, normal browsing (e.g. HN)<p>* Firejailed firefox = useful for sites too broken in regular Firefox<p>Both Chromium and FF are set to destroy cookies upon session termination and block third party cookies. I use uBlock Origin in &quot;default deny&quot;[0] mode which blocks all third party content by default. I never sign into accounts from google, twitter, linkedin, or any other advertiser purveyor within FF.<p>The firejailed firefox is for such advertising purveyors and&#x2F;or for sites which are cumbersome to make work properly by selective whitelisting in uBlock origin. I use firejail, rather than incognito &#x2F; private browsing, so that the browser will behave exactly as if it were freshly installed when I visit these sites. Some settings (and in the case of FF, add-ons) will impact incognito&#x2F;private browsing; firejail allows me to run a browser &quot;wide open&quot; safely.<p>[0] <a href="https:&#x2F;&#x2F;github.com&#x2F;gorhill&#x2F;uBlock&#x2F;wiki&#x2F;Dynamic-filtering:-default-deny" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;gorhill&#x2F;uBlock&#x2F;wiki&#x2F;Dynamic-filtering:-de...</a>