Ubuntu 24.04 on the Framework Laptop 16

Just installed Ubuntu 24.04 on my Batch 19 Framework16 and everything seems to be working perfectly with one exception: the open file dialog does not work correctly in either Firefox or Brave, but does work in Chrome. Is anyone else seeing this?

The open file dialog comes up with no problem when needed (e.g. you are trying to import a certificate), but if you double click on a file or click the open button, the dialog disappears but the file is not uploaded. I am currently forced to use Chrome because of this, which is not my preferred choice.

Possibly this is an Ubuntu bug, but I couldn’t find anything on the Ubuntu forums about it, which I would expect to if it was impacting everyone because Firefox is the default browser.

I would be curious to know if any other Framework16 users have seen this problem. If you are running Ubuntu 24.04 on a Framework16, are you able to open files in Firefox?

In case it is relevant, I’m using internal graphics, no GPU, and I did a fresh install of Ubuntu 24.04 from a live USB.

EDIT: As suggested by Paul Kelly, I removed snap following the instructions at https://linuxconfig.org/uninstalling-snapd-on-ubuntu and reinstalled Firefox and Brave and this completely solved the problem.