about:support option strips TBB down to Firefox

-go to about:support -click "Refresh Tor Browser" -now you're fucked

This option should restore the Tor Browser Bundle to it's default config, meantime as the Tor Browser. Instead it "restores" it to more or less FIrefox.

I used it once where I not only didn't have Tor locally installed, but didn't have safe access to updates or downloads, and suddenly found myself stranded without web access over tor.

I understand some users may need to manually re-install the Tor Browser Button, etc. But at the very least this path needs to be better marked.