DOI translator in 2.0beta7.1

I just recently noticed that DOI translator for websites is not correctly working in 2.0beta7.1.

In 2.0beta6, I used to be able to go to a site that had a DOI and click the folder icon in the address bar to have a window popup that allowed me to import references into zotero.

Now, I click it and I get a grey box with a red outline in the lower right hand corner (like zotero is trying to add something), but there is no text in the grey box and the window never pops up.

I'm using firefox 3.0.14 on Ubuntu Jaunty x64.

Thanks for your help.
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