The following browsers support Fluid Topics:
- Safari (starting from Safari version 13.1)
New features and bug fixes are only available when running Fluid Topics in a decently recent version of a supported browser.
Safari version 13.1 was introduced with the release of macOS 10.13 High Sierra in 2017.
The browser window must have a width of at least 768 pixels to access the Administration menu, where all configuration options are available. This means that the menu is not available on small mobile devices, including smartphones.