In Ubuntu 22.04 I installed Firefox (105.0b1) with Snap. I use Dropbox (v155.4.5493). If I want to "Launch Dropbox Website" in the Dropbox application then Firefox should open the Dropbox site. But instead it tells me "File not found" and in the middle of the page it shows "Firefox can’t find the file at /tmp/dbxlcr7lvma8.html#8f92595a3bd48760306e963b305d58ddf0958877117f770ffaa4d8960c2f4f1bd3a6b6bf3378acb08d7178.".
Workaround: Install Firefox without snap then it works. But this solution has other disadvantages.
So. Who's problem is that? Ubuntu? Firefox? Snap or Dropbox? Who is going to fix it? It worked so nicely in Ubuntu 20.04 without the snap-Firefox.