Links in framed page do not work correctly

I upgraded to 3.0.4 and have had issues ever since. Left-clicking on a link inside a framed page does nothing. Middle-clicking opens a new tab with the URL in the address bar, but it won't load until I hit Go on the address bar.

This was never an issue until I updated to 3.0.4, it happens on all my scanned pages, and I have no similar issue when visited regular webpages.

Could it be an issue between Update Scanner and Greasemonkey? I see a lot of this in the error console while viewing pages through Update Scanner, but I'm not sure if it's related.

Error: [Exception... "Operation is not supported" code: "9" nsresult: "0x80530009 (NS_ERROR_DOM_NOT_SUPPORTED_ERR)" location: "file:///C:/Documents%20and%20Settings/Chris/Application%20Data/Mozilla/Firefox/Profiles/Restore/extensions/%7Be4a8a97b-f2ed-450b-b12d-ee082ba24781%7D/components/greasemonkey.js Line: 338"]
Source File: file:///C:/Documents%20and%20Settings/Chris/Application%20Data/Mozilla/F...
Line: 338

Re: Links in framed page do not work correctly

I've tried installing greasemonkey, and everything seems to work fine for me.

Perhaps there's a problem with one of your greasemonkey scripts? Try uninstalling them one-by-one, and see if/when the problem goes away.
If that doesn't work, try disabling greasemonkey.
If you still have problems, create a new firefox profile and try installing only updatescanner (see the "Bugs" link on the left for more details)

Please let me know how you get on.