Launch Dropbox Website fails with Snap Firefox

[derrickoswald]

URL: https://tmp/dbxlcge_zf79.html

Browser / Version: Firefox 105.0
Operating System: Ubuntu
Tested Another Browser: No

Problem type: Something else
Description: Lauch DropBox from Linux desktop fails
Steps to Reproduce:
Since the conversion to the Snap install of Firefox, the generated DropBox link (created when clicking the Launch DropBox Website menu item in the dropbox menu in the linux desktop menu - upper right) fails.

The process writes an HTML file in Linux /tmp directory and tries to open the browser with that file and a URL parameter which is an encoded key. An example is below:

/tmp/dbxlcge_zf89.html#b79cd8eb6e518cac62a7ebe5ba9b8b7ac93fed89f75c1b10abe1d0d609eafd07015d0aecf28f6dc2d025ec

Browser Configuration

• None

From webcompat.com with ❤️

Steps to reproduce:

1. Install Firefox Snap
2. Install DropBox desktop nautilus-dropbox/jammy,now 2019.02.14-1ubuntu1 amd64 [installed]
3. Click the Launch Dropbox Website menu item

[softvision-oana-arbuzov]

Thank for the report. Do you experience the issue with Firefox Nightly?

I would not consider this a Compatibility issue @denschub what do you think?

[qa_42/2022]

[denschub]

It's not surprising that this doesn't work -- snap sandboxes away local filesystem access by providing its own per-app /tmp, so reading from /tmp isn't going to work if you expect a global file. It would fail the same way if you, for example, installed Chromium via snap. That makes it not a WebCompat bug by definition.

However, since we have contacts at Dropbox, and it's probably a lot easier for me to reach out to them than it would e for @derrickoswald, I'll send them a message. :)