Very Worrisome Bug

So, I just noticed some very strange behaviour in the 2.1 beta.

When I drag a file to an empty part of the window, my zotero tab is redirected to a website called falsehope.com

The site seems legitimate enough, but this issue is quite frightening. I've disabled Zotero in the meantime. Does anyone have any idea what's going on? I don't know when this behaviour would have started exactly - I only just noticed now.
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