What steps will reproduce the problem? 1. Run a = "hi" in the Command Line 2. Type a. -> there is no auto-completion. Same thing happens with numbers. "hi". works, because it uses another code-path. We're missing an unwrapping for a new contentWin.Object(...) call here, I believe, similar to issue 7597.

https://github.com/firebug/firebug/commit/fae96c0d86713324ec94883766abc25a5060459e

This issue has been fixed in Firebug 2.0.3 https://addons.mozilla.org/en-US/firefox/addon/firebug/

(the XPI doesn't appear on getfirebug.com yet due to: https://bugzilla.mozilla.org/show_bug.cgi?id=1053646)

Please let us know how it works for you.

Thanks for the help! Honza