Anyone else get this?

Setup:
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Windows Vista.
Firefox 6.0.2
Adblock plus is installed but I get the same behavior with it disabled.
As far as I know, there are no other HTML-modifying plugins running (i.e., I'm not running NOSCRIPT for example).
No "toolbars" are installed (i.e., no google toolbar or bing toolbar or anything like that).

Steps:
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- Type a multi-word search term into either the URL field or the google search field in Firefox.
- For example, type "Groovy Language" and press the Enter key.
- Google search results appear on the screen.
- Click the main link of the very first google search result.

Bad result:
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- Instead of going to that link I clicked on, I end up going to the main google search page with a blank search field.
- The BACK button on the browser is grayed out, as if I hadn't clicked on anything.

Additional:
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- If, instead of clicking on the search result, if I CTRL+Click on the search result, it correctly opens a new tab at the search result. It's only a normal click that has the problem.
- Problem does not occur in IE running on the same computer.


Anyone else get this?