Firefox has opened loads of Untitled tabs and I can't close them.
Firefox opened loads of Untitled tabs when I was trying to open my utility bill and I can't close them
This happened
Not sure how often
== Today
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You can have infinite tabs opening if you have selected Firefox as the application to handle a file if you get an Open with download window. Firefox should not be selected as the application to handle a file and you have to remove the action that is associated with that file type.
You can delete mimeTypes.rdf in the Profile Folder to reset all actions or set the offending action in Tools > Options > Applications to 'Always Ask'
See http://kb.mozillazine.org/File_types_and_download_actions ("File handling in Firefox 3 and SeaMonkey 2" and "Reset Download Actions")
If I can't use Firefox to open files, what should I be using?