When using desktop Firefox 145.0 for Windows to browse [the demo page of Logseq](https://demo.logseq.com), the division/button to choose a folder on my computer is missing, and the following text is in place instead.
"It seems that your browser doesn't support the [new native filesystem API](https://web.dev/file-system-access), please use any Chromium 86+ based browser like Chrome, Vivaldi, Edge, etc. Notice that the API doesn't support mobile browsers at the moment."
Tested on Chrome, Edge, Comet, and Arc browsers, the division/button to choose a folder on my computer shows up successfully.