"Zotero 3.0 could not be installed because it is not compatible with Firefox 3.0.19"
This is the message a library patron of mine gets whenever she attempts to install Zotero 3.0. This despite the fact that she has updated her Firefox browser all the way to 9.0.
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Did this sort of problem also occur with prior versions of Zotero? Did people end up having incompatible add-ins, or was something just corrupted in the profile?