The Comparadise extension for Chrome and Firefox does not track your browsing.
It reads the address of the tab you are currently viewing, and only at the
moment you open the extension and press "Extract Product". That address is sent
to Comparadise so the page can be extracted into the comparison you selected.
Nothing is read from pages you don't explicitly submit, and no browsing history
is collected, stored or transmitted.

To sign in, your email address and password are sent to Comparadise. Your
sign-in tokens are kept in the browser's own extension storage on your device
so you don't have to log in every time. Signing out removes them.

The extension requests only two permissions: activeTab, for the address of the
current tab, and storage, for those tokens. Data is sent only to Comparadise;
there are no third-party analytics or trackers.

Full policy: https://comparadise.io/privacy