It's Heroku's free plan, so there's only one worker. When someone's doing a big import, everyone else gets backed up behind them. I just added another worker, getting me out of "free" but into "functional". :)

You can do a bookmarks export from Chrome to HTML, then import that HTML file. All the browsers use the standard Netscape bookmarks file format, AFAIK.

I think your heroku instance is dying under the traffic :P

Yup. I'm gonna crank it up for a short bit then see if I can scale it down to not end up with a $500 bill at the end of the month. :)