Re: Question about licensing Firefox/Thunderbird Extensions

This comment is posted in the hope that it will be useful, but WITHOUT 
ANY WARRANTY to the extent permitted by law; without even the implied 
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE

Friedemann Kunze wrote:
> Which license info do we need in this case?

Sounds like MPL is what you need.

> Could we use our license 
> conditions
> about the extension?

Yes, if you use Thunderbird under MPL or LGPL.

> Or does the license of the extension  has to be an open
> source license?

No, unless you choose to use Thunderbird under GPL.

> Is there something to care about?

You  definitely need to read and understand the text of the license you 
choose. Common advise is to consult a lawyer.

HTH. Cheers,

-- 
Sergey Yanovich