Too many fields crashes pages like /admin/config/people/accounts

Hi, this is a browser issue, but when you have 50+ fields, then the jQuery-enabled token lists are killing my browser. On the page admin/config/people/accounts we have multiple tabs for emails (at the bottom). Each tab duplicates the full token list. Whenever I access this page, my FireFox4 memory usage surges from 50MB to 1GB. Doesn't quite crash yet, but can't work with it either.

So my feature request is this:

- optionally disable jQuery-enable token list
- instead, show a text-based reference list on a separate page

I rather copy tokens manually than crash the browser ;)