Sandfox has been updated. The default firefox profile now includes a bind for the ~/.Xauthority file, which is required to start a sandboxed Firefox in some cases. If you already have sandfox installed, you can delete the file /etc/sandfox/firefox.profile and sandfox will recreate it with the new default.
This version also issues a warning if you run a sandboxed firefox with an instance of firefox already running. (In general other instances should be closed before running sandfox, or firefox may simply open an additional window for the already running instance, rather than starting a sandboxed instance.)
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