Add option for suppressing the "Open with" option in the download dialog
There should be a way to disable the "Open with" option in the download dialog since it is not working (and hence confusing) when sandboxing (e.g. AppArmor) prevents the Tor Browser from starting external applications. See this tbb-dev@ thread and this Tails ticket for the full story.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information