Download extensions in the background
It's very nice that the extension dialog now batches installation.
However, it's still very annoying to be forced to wait while it downloads the VSIX.
Can you make it download in the background (and show a progress bar in the corner status area)?
It'd be fine to block closing the extensions dialog until all downloads finish, but I want to continue browsing extensions during downloads.
I completely agree with this sentiment - we've made some nice improvements to usability via batch installation, so it seems odd that we're still blocked on a modal dialog while the VSIX downloads, unable to interact with Visual Studio for the entirety of the operation.