Hi, when we've started confining Tor Browser with AppArmor in Tails, we introduced a usability regression: when downloading a file, we let the user choose between "Save as" and "Open with", while we know that "Open with" will always fail. Note that we currently set extensions.torbutton.launch_warning to false, because the text in that warning dialog is no good fit for Tails. I see two main options: 1. Add an option to Tor Browser to never propose opening a downloaded file with an external application. I suspect this is quite involved, and probably not worth the effort. But you know the codebase, and I don't, so I'm all ears :) 2. Display a custom pre-download dialog that makes users aware of the limitations ("the next dialog window lies ⇒ don't even try choosing 'Open with'") E.g. set extensions.torbutton.launch_warning back to true, and patch the torbutton.popup.external.* strings to tell users that "Open with" won't work. Can we do that ourselves without modifying Torbutton? If not, could we add a pref (off by default) that uses alternate strings when turned on? I guess we can provide a patch, and have the strings go through our own tech writers / UX people, if you think it's acceptable. 3. Other ideas? [JFTR this is about Tails ticket #9285.] Cheers, -- intrigeri