Do Mozilla add-ons work in Postbox?
Unmodified Mozilla add-ons do not work within Postbox at this time. Developers of existing Mozilla add-ons need to port their add-ons to Postbox. Sometimes this can be as simple as changing a few parameters, such as product, version, etc., other times the porting effort may be more complex. In some instances, such as Lightning, Postbox has performed the necessary porting work to get an add-on to operate within Postbox. We do this so people can get an early feel for how key add-ons will function within Postbox. But we do not support these add-ons, again, because we did not develop them.
