Backend Browser
Only the SecuTix provided "Firefox pack" on Windows is supported. See all the details here.
Frontend / Public Browsers
For the general public (and agencies / B2B channels), we support every major browsers that represent more than 1% of the usage on internet. As a reference, we use https://caniuse.com/usage-table
For example, let's look at IE
This means that IE 11 is supported (but 10 and before are not), Edge 18 (or later), then we've got Firefox 72, Chrome 79 and Safari 13.