© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
0e1f616
(Get the code!)
I think the behaviour that you are experiencing is just by design of Firefox. Middle-clicking in empty space makes Firefox load an URL from the selection clipboard. If the clipboard contains some random words/junk, then you are getting these errors that you've mentioned.