Comment 139 for bug 18995

This is my view of the perfect "Open with/Save" dialog:

"File: <name of the file> (type, size)"
Two tabs: "Save as..." and "Open with..."
Under "Save as...", the typical "Save as" dialog. By default, displaying the last directory selected, or the default one (usually "Downloads").
Under "Open with...", a list of installed applications. The list will be headed by the 3 most used applications for that type. If possible, it would be nice that the rest of applications were grouped by categories (Linux) or mimic the Start menu (Windows); this is how PCManFM looks and it's quite handy. Under it, a "Custom command" box (which would allow to enter commands with arguments or paths to executables), optionally with a "Browse..." button.
At the bottom, the buttons "Ok" and "Cancel", and a "Do this automatically for this type" checkbox.

What do you think?