Project has the same browser support as M365. Here are the recommendations:

• Safari and Chrome: works with current version.
• Microsoft Edge: works with current version, may work with older versions but suggested to upgrade.
• Internet Explorer: works with Internet Explorer 11 or the newest version. May work with an older version, but suggested to upgrade.
  • If your organization is dependent upon earlier versions of Internet Explorer to access older web apps and services, you should consider upgrading to Internet Explorer 11 and evaluating Enterprise Mode for Internet Explorer 11 or IE mode for the new Microsoft Edge, which provides backward compatibility for legacy web apps.
• Firefox: works with current version. However, Firefox does not fully support Microsoft Teams meetings.
• Microsoft Teams meetings are fully supported on the latest versions of Microsoft Edge and Google Chrome.