Author: Christian Assig
Revision Date: 2017-06-04 12:08:16 UTC

According to various comments in bug reports, the ubufox add-on still works fine if the user forces Firefox to enable multiprocessing:
https://bugs.launchpad.net/ubufox/+bug/1627808
https://bugs.launchpad.net/ubuntu/+bug/1627290

This change will declare the add-on as compatible with multiprocessing, according to Mozilla's documentation from:
https://developer.mozilla.org/en-US/Add-ons/Install_Manifests#multiprocessCompatible