Install fails on Firefox 3.7a5
                    When I attempt to install Zotero 2.0.3 on Firefox 3.7a5, I receive an error "Zotero 2.0.3 could not be installed because it is not compatible with Firefox 3.7a5pre.".  I have tried installing from both the Zotero site and the Firefox addons page.  I have Nightly Tester Tools installed (which was recommended by a previous forum post here on this topic), but that does not appear to help.  I had a Zotero 2 beta installed previously (showing that compatibility with Firefox 3.7 existed at one time), and that stopped working, so I uninstalled it today.  I tried installing 2.0.3 both before and after the uninstall of the old version, receiving the same message both times.  Is there a workaround to force Zotero to install?                
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Update: I can force an install after installing the Add-on Compatibility Reporter, but the Add-on does not seem to be allowed to get loaded.
Thanks
http://www.oxymoronical.com/blog/2010/05/Where-is-the-updated-Nightly-Tester-Tools
also notes a forthcoming substitute. Right now I fear you're stuck, but it sounds like
compatibility reporter will pick this up soon.